Friday

April 18, 2014

April 18, 2014

Number of results: 269,679

**Math**

Choose the three true statements about the graph of the quadratic function y = x2 − 3x − 4. Options A) The graph is a parabola with a minimum point. B) The graph is a parabola with a maximum point. C) The point (2, 2) lies on the graph. D) The point (1, 6) lies on ...
*Saturday, June 5, 2010 at 2:28pm by S Rey*

**college algebra, Please help!!**

Answer the following function. f(x)=2x^2-x-1 A. Is the point (-2,9) on the graph of f? B. If x equals 2, what is fx? What point(S) are on the graph of f? c. if f(x)= -1, what is x? what point(s) are on the graph of f? d. what is the domain of f? e. List the x-intercpts, if any...
*Friday, November 9, 2012 at 1:11pm by ladybug*

**college algebra, Please help!!**

Answer the following function. f(x)=2x^2-x-1 A. Is the point (-2,9) on the graph of f? B. If x equals 2, what is fx? What point(S) are on the graph of f? c. if f(x)= -1, what is x? what point(s) are on the graph of f? d. what is the domain of f? e. List the x-intercpts, if any...
*Friday, November 9, 2012 at 1:11pm by ladybug*

**calculus**

let f be the function f(x) = x^3 + 3x^2 - x + 2 a. the tangent to the graph of f at the point P = (-2,8) intersects the graph of f again at the point Q. Find the coordinates of point Q. b. Find the coordinates of point R, the inflection point of the graph of f c. Show that the...
*Tuesday, March 23, 2010 at 11:31pm by mary*

**Math- calculus**

Given f(x) = x ^ 3 - x ^ 2 -4x +4 Find the zeros of f. Write an equation of the line tangent to the graph of f at x = -1 The point (a,b) is on the graph of f and the line tangent to the graph at (a,b) passes through the point (0,-8) which is not of the graph of f. Find a and b...
*Friday, September 25, 2009 at 12:48am by Erin*

**calculus**

answer the questions about the following function f(x)= 10x^2/x^4+25 a. is the point (-sqrt 5,1) on the graph b. if x=3, what is f(x)? what point is on the graph of f? c. if f(x)=1, what is x? what points are on the graph? d. what is the domain of f? e. list the x-intersepts? ...
*Sunday, December 16, 2012 at 9:48am by Help--Please help!!!!*

**Math - point on the graph (check +help)**

Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line 3x+y+4=0 I do not seem to get the answer... I find the first derivative of f(x0 and equate it to the value of the slope from the tangent line. the answer ...
*Saturday, October 23, 2010 at 12:24pm by Anonymous*

**math**

If the point (6, -12) is on the graph of y=f(x), which point must be on the graph of y=f((-1/3x)+6)? so far, I have y=f(-1/3(x-18))
*Tuesday, June 16, 2009 at 8:20pm by sh*

**Math 12**

(2,1) is a point on the graph of y= f (x) . Find the corresponding point on the graph of each of the following functions a) y= -f (-x) +2 b) y= f (-2(x+9))-7 c) y= f (x-2) +2 d) y= 0.3f (5(x-3)) e) y= 1- f(1-x) f) y= -f (2(x-8))
*Tuesday, October 11, 2011 at 6:21pm by Tarkan*

**Math**

There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the coordinates of the point...
*Thursday, November 19, 2009 at 6:37pm by Salman*

**Math**

There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the coordinates of the point...
*Friday, November 20, 2009 at 3:59am by Salman*

**math~ helpp pplease**

(3,5) is a point on the graph of y = f(x). Find the corresponding point on the graph of each of the following relations a) y=3f(-x + 1) + 2 what do I do with the negative sign before the x (-x)?
*Thursday, November 24, 2011 at 1:38am by Jay*

**College algebra**

Answer the questions about the following functions. f(x) = 14^2/x^4 + 49 (a) Is the point (-sqrt 7,1) on the graph of f? (b) If x=1, what is f(x)? What point is on the graph of f? (c) If f(x)=1, what is x? what point(s) are on graph of f? (d)What is the domain of f? (e) list ...
*Thursday, March 14, 2013 at 11:05pm by Jenn*

**math**

(2,-7) is a point on the graph of y=f(x) . Find the corresponding point on the graph of y= 3f(5(x-1)+1 .
*Wednesday, May 30, 2012 at 11:51am by bill*

**Math--Calculus**

Let y = f(x) be the continuous function that satisfies the equation x^4 - (5x^2)(y^2) + 4y^4 = 0 and whose graph contains the points (2,1) and (2,2). Let L be the line tangent to the graph of f at x = 2. (a) Find and expression for y'. (b) Write an equation for the line L. (c...
*Monday, November 12, 2007 at 3:14pm by Sophee*

**Calculus**

1. Given the function f defined by f(x) = x^3-x^2-4X+4 a. Find the zeros of f b. Write an equation of the line tangent to the graph of f at x = -1 c. The point (a, b) is on the graph of f and the line tangent to the graph at (a, b) passes through the point (0, -8) which is not...
*Monday, January 16, 2012 at 12:52am by Anonymous*

**calculus**

from what you have done correctly, I made the following sketch Graph rises out of quadr III to a max point (-3,175) in II , turns around at that point and has a point of inflection at (-2.12,110), has another point of inflection at (0,10), and continued to drop to (3,-152)in ...
*Sunday, July 22, 2012 at 1:41pm by Reiny*

**Math - point on the graph**

Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line 3x+y+4=0
*Thursday, October 21, 2010 at 12:52pm by Anonymous*

**Math**

The quadratic function f(x) = x^2 is transformed to g(x) = -2/3(x+3)^2 + 6 The point (6,36) on the graph of f is transformed to which point on the graph of g? Could someone please show me how to solve this:\
*Wednesday, December 7, 2011 at 9:50pm by -Untamed-*

**Math **

since the graph is a straight line, all you need to do is find 2 points, then draw a line through them. The easiest two points to use are usually when x=0 or y=0 (or, t and c in this case) setting t=0, we get c = 20*0 + 30, so the point (0,30) is on the graph. When c=0, we get...
*Saturday, October 1, 2011 at 2:44pm by Steve*

**cal**

Equations of the tangent lines to hyperbola xy=1 that pass through point (-1,1) I know the graph of y=1/x but not sure about the tangent lines at given point. Are the lines tangent to (1,1) and (-1,-1)? You're correct, the graph is y=1/x, so find y' to get the slope at any ...
*Tuesday, September 26, 2006 at 8:51pm by Melba*

**math**

Consider the cubic graph y = 3x^2 − x^3. (a) Write 3x^2 − x^3 in factored form. (b) Use this form to explain why the graph lies below the x-axis only when x > 3, and why the origin is therefore an extreme point on the graph. I mostly need help with what an ...
*Friday, April 22, 2011 at 10:27pm by jane*

**Calculus (Continuity and Differentiability)**

I think that I may have confused you about the graph that I am dealing with. I know that if a corner is present in an original function, then it will not be differentiable at that point. I thoroughly understand this point. Now, the graph that I am given is the graph of the ...
*Saturday, November 12, 2011 at 3:43pm by Mishaka*

**Pre-calculus-check answers**

Choose the statement that is true for the graph f(x) =x^3-12x. Answer: f(x) decreases for x >-2 2) Which type of critical point, if any, is present in the graph of f(x)=(x-4)^5+1 Answer: none
*Saturday, August 23, 2008 at 2:15pm by Lucy*

**Math-due today, need a check**

Please help me with this, below is a question I have to answer…below that is my answer…did I do, or answer this correctly? Post a response of at least 50 words to the following: Explain how to graph linear equations using the x- and y-intercepts. Provide an example to support ...
*Wednesday, December 2, 2009 at 2:13pm by Lisa*

**calculus**

Find the point on the graph of f(x)=√x that is closest to the value (4,0). (differentiate the square of the distance from a point (x,√x) on the graph of f to the point (4,0).)
*Tuesday, December 6, 2011 at 11:00pm by Roberto DX*

**math**

The reflection of a point about the x-axis means that if the point is above the x-axis, after the reflection, the point will be below the x-axis, at the same distance from it as before. I.e. the x-axis acts like a mirror. For example, the point (5,4) reflected about the x-axis...
*Monday, June 21, 2010 at 3:40pm by MathMate*

**algebra**

I disagree with your math. Isn't -5-1=-6? m=-3/-6= 1/2 Now, graphing the line. mark this point on a graph paper (1,0). Now mark this point (-5,-3). Put ruler on the graph paper such that the edge touches each point. Draw the connecting line.
*Saturday, September 12, 2009 at 7:33am by bobpursley*

**Math(Please check)**

Yeah. Intercepts are where the graph crosses the x and/or y axis. Looking at your graph on the calculator and tracing it, it never crosses the x axis, right? So you would only have a spot where it crosses the y axis, and tracing it, that point is (0,3).
*Tuesday, March 23, 2010 at 1:07pm by Morgan*

**Maths**

There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the coordinates of the point...
*Thursday, November 19, 2009 at 5:41pm by Salman*

**Calculus**

There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the coordinates of the point...
*Thursday, November 19, 2009 at 6:37pm by Salman*

**Maths**

There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the coordinates of the point...
*Friday, November 20, 2009 at 3:59am by Salman*

**Calculus**

There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the coordinates of the point...
*Friday, November 20, 2009 at 4:00am by Salman*

**calc**

the tangent line to the graph of y=sin x at the point (2pi/3, (radical 3)/2) crosses the sine graph at the point where x=?
*Sunday, May 2, 2010 at 7:49pm by Lauren*

**precalc!!!!!**

The point (5,-2) lies on the graph of y=f(x), and assume f^-1(x) exists. Find the corresponding point on eAch graph. A). Y=f^-1(x) I get (-5,2) B). Y=-f^-1(-x)+4 I get (5,2) C). Y=f^-1(x+2)+3 I get (-7,5) Did I get these right?
*Saturday, March 10, 2012 at 8:36pm by L.Bianchessi*

**precalc!!!!!**

The point (5,-2) lies on the graph of y=f(x), and assume f^-1(x) exists. Find the corresponding point on eAch graph. A). Y=f^-1(x) I get (-5,2) B). Y=-f^-1(-x)+4 I get (5,2) C). Y=f^-1(x+2)+3 I get (-7,5) Did I get these right?
*Saturday, March 10, 2012 at 9:14pm by L.Bianchessi*

**precalc!!!!!**

The point (5,-2) lies on the graph of y=f(x), and assume f^-1(x) exists. Find the corresponding point on eAch graph. A). Y=f^-1(x) I get (-5,2) B). Y=-f^-1(-x)+4 I get (5,2) C). Y=f^-1(x+2)+3 I get (-7,5) Did I get these right?
*Saturday, March 10, 2012 at 9:14pm by L.Bianchessi*

**calculus**

6. Determine a, b, c, and d so that the graph of y=ax^3+bx^2+cx+d has a point of inflection at the origin and a relative maximum at the point (2, 4). Sketch the graph.
*Tuesday, January 3, 2012 at 12:04am by Yoona*

**calculus**

The point (1,5) isn't on the graph of y^x^3. It is just a point on the tangent of the graph y = x^3. Sorry if I wasn't clear before.
*Tuesday, November 6, 2012 at 12:50am by asdf*

**Math/Algebra**

Please help me with this, below is a question I have to answer…below that is my answer…did I do, or answer this correctly? Post a response of at least 50 words to the following: Explain how to graph linear equations using the x- and y-intercepts. Provide an example to support ...
*Wednesday, December 2, 2009 at 2:45pm by L*

**pre calculus**

If f and g are inverse functions and the point (-3, 5) is on the graph of f, then the point ____ is on the graph of g
*Monday, October 10, 2011 at 1:26pm by vedo*

**Algebra I**

When given a point on a graph, (3,5) and the slope (-2), how do I find another point on the graph?
*Wednesday, November 14, 2007 at 8:52am by Mary*

**Physics**

I have no idea how to do this. Anyone help? A cyclist passes a race check point at +5.5m/s and then accelerates ata constant rate of +.55 m/s^2. The cyclist forgot to check in at the check point, and after 20s turns back around to head back. How far did the cylist move from ...
*Thursday, October 8, 2009 at 1:37pm by me*

**Math - PreCalc (12th Grade)**

ok so far, though they already told you that f(2)=3 because the point (2,3) is on the graph. As you know, the slope at any point (x,y) on the graph is 2x+2 So, the slope at x=2 is 6 Though, if this is pre-calc, how do you know the slope of the tangent to a curve? That's actual...
*Thursday, March 20, 2014 at 12:58pm by Steve*

**mathematics**

using a graph plot the following points: point 1 (1,0), point 2 (1,-1), point 3( 1,-2), point 4(2,-2)draw lines to connect from point 1 to point 3 to point 4, the lines you have just drawn most resemble which of the following letters of the alphabet? x, o, n, or l.
*Monday, May 17, 2010 at 8:58pm by patricia*

**math**

If your drawing a sine graph and you have to mark the point sine(65, how do you figure out where the point goes? (The sine graph goes up to 1)
*Sunday, September 30, 2007 at 8:29am by Anonymous*

**Math**

1. What type of graph does not show the number of times a response was given? (1 point) box-and-whisker plot line plot stem-and-leaf plot bar graph 2. Which of the following types of information is suited for display on a scatter plot? (1 point) relationship between favorite ...
*Friday, April 5, 2013 at 5:19pm by Anonymous*

**calculus**

Imagine what is happening from (-infinity < x < infinity) 1). from -infinity to x = -2, the graph is going up, then reaches a maximum at x = -2 2). From x = -2 to x = 1, the graph is going down to the minimum at x = 1 3). From x = 1 to x = 6, the graph goes up again to ...
*Sunday, November 11, 2012 at 4:41pm by Jennifer*

**Calc**

Write the equation of the line tangent to the graph of the function at the indicated point. As a check, graph both the function and the tangent line you found to see whether it looks correct. (1/x^3 -x)^2 at x= 2
*Tuesday, February 21, 2012 at 1:08pm by Mike*

**AlgebraB-2**

1. What are the coordinates of the vertex of the graph? Is it a maximum or minimum? 3. How is the graph of y = –2x2 – 4 different from the graph of y = –2x2? (1 point) 4. Graph the function. Identify the vertex and axis of symmetry.
*Tuesday, March 19, 2013 at 5:56pm by Jennifer W.*

**chemistry**

mols NaOH = M x L mols CH3COOH = mols NaOH. mols CH3COOH = M x L You took 25 mL, you measure the mols CH3COOH, calculate M CH3COOH. I presume you are to graph the results. I don't know what instructions you have been given but you must find the equivalence oint for the ...
*Tuesday, April 8, 2008 at 11:39pm by DrBob222*

**Math 8th Grade**

I would greatly appreciate it if someone would please be kind enough to take the time and show me how to work these problems. Thank you very much Solve by finding y and graph using the slope and y-intercept: 3x-y=1(My answer -y=3x+1)which is wrong could not graph it. x-y=3 (My...
*Saturday, May 12, 2012 at 6:10pm by Please help me*

**calculus**

The function f is defined by f(x) = x^3 - x^2 - 4x + 4 The point (a,b) is on the graph of f and the line tangent to the graph at (a,b) passes thru the point (0, -8) which is not on the graph of f. Find the values of a and b. I have no clue how to solve this I know the ...
*Sunday, September 30, 2007 at 9:52am by nick*

**calc**

The function f is defined by f(x) = x^3 - x^2 - 4x + 4 The point (a,b) is on the graph of f and the line tangent to the graph at (a,b) passes thru the point (0, -8) which is not on the graph of f. Find the values of a and b. I have no clue how to solve this I know the ...
*Sunday, September 30, 2007 at 7:01pm by nick*

**calculus**

find a function f given that (1) the slope of the tangent line to graph of f at any point P(x,y) is given by dy/dx=3xy and (2) the graph of f passes through the point (0,2)
*Tuesday, April 10, 2012 at 11:53am by mabel*

**calculus**

There is no unique graph for y = mx + b without knowing the values of m and b . The only thing I can surmise is that the straight line will continue on from (2,4), which is the end point of the parabola. so the endpoint of y = x^2 , x ≤ 2 is (2,4) dy/dx of the parabola ...
*Sunday, October 2, 2011 at 4:37am by Reiny*

**MATH**

Give a response of at least 50 words to the following: Describe the graph of the interval [-4, 3). • Explain how this differs from the graph of the interval [-4, 3]. From the question above, does the answer below sound right? The interval notion is a way to express solutions ...
*Wednesday, December 16, 2009 at 8:47pm by H*

**Calculus**

Sketch a graph of the parabola y=x^2+3. On the same graph, plot the point (0,−6). Note there are two tangent lines of y=x2+3 that pass through the point (0,−6). The tangent line of the parabola y=x^2+3 at the point (a,a^2+3) passes through the point (0,−6) ...
*Monday, June 17, 2013 at 3:45pm by Robin*

**chemistry**

a graph of melting point against relative atomic mass for the alkali metals on the same graph, a plot of the boiling points with a sentence to describe the information the graph gives
*Sunday, November 28, 2010 at 10:37am by ad*

**Math**

I have a graph which I need to find the equation of. It's an absolute value graph, the vertex/middle point is at (-2, 5) and 2 points that lie on the graph are (1,10) and (-5,10). It needs to be in 'y=' form. I'd appreciate it if you explained how to do find the equation, too.
*Friday, April 10, 2009 at 8:25pm by Jose*

**math!**

yes. Now, you need the second derivative, which in this cae is 6x. So, at the first "critical point,-1.4, the second derivative is negative, so at that point, so it is a maximum. At the second point 1.4, the second derivative is positive, so the graph is a relative minumum ...
*Thursday, October 23, 2008 at 6:19pm by DanH*

**math**

Find the point on the graph of the function closest to the given point. Function f(x) = xsquared Point (2, 1/2)
*Wednesday, December 7, 2011 at 11:21pm by Son*

**Math**

Find the point on the graph of the function that is closest to the given point. Function Point f(x) = x^2 (16, 1/2) (x, y) = ( ) ?
*Sunday, March 4, 2012 at 9:51pm by Malika*

**College Math**

2008 (2nd)Course2-4.1 We are to find a function f(x) such that its derivative is x^2+x-1 and the graph of y=f(x) is tangent to the straight line y=x+1. First we find the coordinates of the point at which y=f(x) and y=x+1 are tangent.Since the slope of the tangent line is A,the...
*Friday, June 10, 2011 at 1:04pm by Bayarbold*

**algebra**

write an equation for a graph in slope-intercept form if the slope of the graph is 5/-4 and one of the coordinates of a point on the graph is 1,-1).
*Monday, January 3, 2011 at 7:22pm by Blue13*

**math (transformations)**

point (-3, 8) is on the graph y=f(x) find the new point on: y = f(x - 2) -3
*Friday, July 4, 2008 at 6:45pm by Tom*

**Algebra 2**

If the point P is on the graph of a function f, find the corresponding point on the graph of a given function. P (0,5) y = f ( x + 2 ) - 1
*Monday, October 28, 2013 at 10:32pm by Serena*

**Calc**

Line L is tangent to the graph of y= x- (x^2/500) at the point Q a) find the x coordinate of point Q B) right an equation for line L C) suppose the graph above were a hill (measured in feet). There is a 50 foot tree growing vertically at the top of the hill. Does a spot light...
*Friday, January 25, 2013 at 9:38pm by Danny*

**Calc**

Line L is tangent to the graph of y= x- (x^2/500) at the point Q a) find the x coordinate of point Q B) right an equation for line L C) suppose the graph above were a hill (measured in feet). There is a 50 foot tree growing vertically at the top of the hill. Does a spot light...
*Sunday, January 27, 2013 at 9:40am by Aparna*

**math**

The graph of y=x² is quite standard, so it is a good point to start. The transformation y -> y+4 is a translation along the positive y-axis. So the graph of y=x²+4 is obtained by shifting upwards by 4 units (i.e. along the +y axis) the graph of y=x².
*Thursday, December 9, 2010 at 7:07pm by MathMate*

**Math help Please**

2. How do the graphs of y = 1/x and y = 3/x – 4 compare? (1 point) Compared to the graph of y = 1/x, the graph of y = 3/x – 4 is a vertical stretch by a factor of 3 and a translation of 4 units left. Compared to the graph of y = 1/x, the graph of y = 3/x – 4 is a vertical ...
*Thursday, January 9, 2014 at 5:09pm by Cassie*

**Math check**

z=(8-2.3)/1.4=4.07 graph 0.99998 is this the right way and how do you change the graph numbers since they are all 9's that would need to be rounding?
*Thursday, June 13, 2013 at 7:58pm by Tom7*

**math**

permit me to change the x in cos(x) to theta for a point (r,theta) on the polar graph and that same point as (x,y) on the rectangular coordinate system graph cos(theta) =x/r and sin(theta) = y/r and x^2 + y^2 = r^2 so r = acos(theta) + bsin(theta) gives r = ax/r + by/r r^2 = ...
*Thursday, May 14, 2009 at 10:16pm by Reiny*

**CHEMISTRY**

A graph would do if but you must read the graph. We need the solubility of KNO3 and KCl but if you have a graph all you need to do is read that first one off the graph. At what T on the graph is the solubility of KCl and KNO3 the same. The solubility curves should intersect at...
*Sunday, September 23, 2012 at 6:44pm by DrBob222*

**Math(check)**

the graph of the line through (2,3) that is perpendicular to the line with equation x=-1 also goes through which point?
*Thursday, July 26, 2007 at 2:05pm by Anonymous*

**Math**

[0,1] means that you only need to graph the equation from t=0 to t=1 The initial point can be found by (x(0), y(0)); the terminal point is (x(1), y(1))
*Sunday, August 9, 2009 at 3:42pm by Marth*

**calculus**

If a function f is continuous for all x and if f has a relative minimum at (-1,4) and a relative minimum at (-3,2), which of the following statements must be true? (a) The graph of f has a point of inflection somewhere between x = -1 and x=3 (b) f'(-1) = 0 (c) The graph of f ...
*Tuesday, December 27, 2011 at 2:08pm by Sam*

**math**

yes. each value of x maps to a unique value of y. If you graph it, no vertical line crosses the graph in more than one point.
*Monday, October 29, 2012 at 5:45pm by Steve*

**Physics**

Is this the proper description of the statement...(it's a d-t graph) The slope of the graph at point A is 30. Ans: The instantaneous velocity of the object at point A is 30. Or is it supposed to be instantaneous acceleration.
*Wednesday, February 6, 2008 at 8:14pm by Anonymous*

**Math Ms. Sue please**

1. What type of graph does not show the number of times a response was given? (1 point) box-and-whisker plot line plot stem-and-leaf plot bar graph 2. Which of the following types of information is suited for display on a scatter plot? (1 point) relationship between favorite ...
*Wednesday, March 20, 2013 at 7:52pm by Delilah*

**Math**

The unit circle is the graph of x^2 + y^2 = 1. The radius vector is viewed as the hyp. of a rt triangle and has a magnitude of 1. A vector is assumed to rotate CCW. So if we start at 0 deg and calculate the coordinates of the point where the vector intersects the circle, we ...
*Tuesday, October 26, 2010 at 11:13pm by Henry*

**algebra**

check it: 1.5/.5 - (.5)/1.5=4 3-1/3 does not equal 4 so, that is not the solution. recheck. Or better yet, graph it to check. I see two solutions, on at a=.18 about, and one about X.3. Graph x/(x-1) - (x-1)/x -4
*Sunday, August 30, 2009 at 12:39pm by bobpursley*

**MATH**

Graph the 2 Eqs, and the point of intersection should be (2, -1). Use the given points for graphing. Eq1: Y = 4X - 9. (1,-5), (3,3),(4,7). Eq2: Y = -2X + 3. (0,3),(3,-3), (4,-5). Straight lines are easy to graph; so no special equipment is required.
*Wednesday, January 5, 2011 at 6:53pm by Henry*

**Trigonometry**

Sketch a height versus time graph of the sinusoidal function that models each situation. draw at lease three cycles. assume that the first point plotted on each graph is at the lowest point: a girl lying on a an air mattress in a wave pool that is 3 m deep, with waves 0.5 m in...
*Saturday, January 1, 2011 at 4:09pm by Allison*

**calc**

let f be function given by f(x)= Ln(x)/x for all x> 0. the dervative of f is given by f'(x)= (1 - Ln(x))/x squared. a) write equation for the line tangent to the graph of f at x=e squared b) Find the x-coordinate of the critical point of f. Determine wheter this point is a ...
*Monday, May 19, 2008 at 3:16am by sarah*

**college math**

find the slope of the tangent line to the graph of f at the given point. Graph f and the tangen line. 9. f(x) = 3x +5 at (1.8) 10. f(x)=2x + 1 at (-1,3) Please, help me with this problems. thanks
*Wednesday, October 19, 2011 at 12:04am by Dave*

**Math**

(2,6) and (3,7) slope = (7-6)/(3-2) = 1 so if y = m x + b and m = 1 then y = 1 x + b now put in a point, any point like 6 = 1 (2) + b so b = 4 and y = x + 4 (indeed, we could have figured that out with a sketched graph.) then if = 7 then y = 7 + 4 = 11
*Friday, December 27, 2013 at 4:11pm by Damon*

**Basic Linear Algebra**

1. At what point does the graph of f(x)=3x-12 crosses the x-axis? 2.At what point does the graph of f(x)=5x+1 crosses the y-axis?
*Wednesday, February 5, 2014 at 6:24am by Shin*

**Pre-calculus**

1. symmetric about the y-axis because f(-x) = f(x). That is, if you pick a point on the graph, flip it about the y-axis, you land on another point on the graph. 2. odd function means f(-x) = -f(x) Same thinking as above, but (x,y) is matched by (-x,-y). Join the points, and ...
*Friday, April 6, 2012 at 7:52pm by Steve*

**math**

the equation 5x + 6y = 30 becomes the boundary for your graph. using the intercepts, that is, let x = 0 , y = 5 ---> point (0,5) let y = 0 , x = 6 ---> point (6.0) we have 2 "nice" point to draw a dotted line for that boundary. Now any point below that boundary line ...
*Sunday, March 28, 2010 at 9:57am by Reiny*

**math**

The vertex of a parabola: y = a x ^ 2 + b x + c is the point where the parabola crosses its axis. If the coefficient of the x ^ 2 term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the “U”-shape. If the coefficient of the x ^ 2 term ...
*Thursday, July 26, 2012 at 5:42pm by Bosnian*

**calculus**

optimization find the point on the graph of the function that is closest to the given point f(X)= square root of x point:(8,0)
*Sunday, December 9, 2012 at 1:12am by Anonymous*

**math**

The graph is a straight line on graph paper. To draw a straight line you need two points to draw the line through. For example find y when x = 0 y = 2(0) - 3 or y = -3 So your first point is (0,-3) now pick some other value of x for a second y at a second point. For example x...
*Saturday, December 29, 2007 at 7:29am by Damon*

**Algebra II repost- please check**

I posted these a little while ago but this time I have answered them. 1. Does the graph of y = x – 3x2 + 5 have a maximum or minimum? 2. What is the vertex of the graph of y = -2(x - 3)2 + 4? 3. Does the graph of y = -2(x - 3)2+ 4 open up or down? My answers: 1. I cannot ...
*Tuesday, November 27, 2007 at 8:06pm by JaneLee*

**math**

graph the points in each group and connect each point with the next point using straight line segments. Do not connect the last point in one group with the first point in the next group.
*Sunday, September 25, 2011 at 9:39am by Dylan*

**Calculus**

Line l is tangent to the graph of y= x - x˛/500 at point Q & it crosses the y-axis at (0, 20) a). Find the x-coordinate of point Q b. Write an equation for line l c) Suppose the graph of y=x-x^2/500, where x and y are measured in feet, represents a hill. There is a 50-foot ...
*Saturday, February 15, 2014 at 6:25pm by Rachel*

**algebra**

The cost of producing a number of items x is given by C = mx + b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a) If the fixed cost is $40 and the variable cost is $10, write the cost equation. (b) Graph the cost equation. (c...
*Monday, July 23, 2007 at 1:13am by jen*

**infinite discontinuity**

How do check the graph of a function has an infinite discontinuity at a point or not? (without the help of a graphing calculator) example: Check whether y = (x^2-9)/(3x-9) has an infinite discontinuity at x = 3 or not CAn you get rid of the denominator? (x+3)(x-3)/3(x-3) in ...
*Monday, December 11, 2006 at 4:01pm by Jen*

**math**

I assume you have a graph of f(x) and you want a graph of 4 f(x+5)^-3. Call that new function g(x). I assume you want a value of the new function g(x) at x. (1) See what the value of f(x) was at x+5, using the graph of f(x) (2) Raise that f(x+5) value to the -3 power (3) ...
*Saturday, December 15, 2007 at 12:47pm by drwls*

**Alg. 2**

I know how to graph polynomial functions, but i'm having a hard time getting the second point on this one. f(x)=x(x-1)(x+2)(x+2). I graphed my zeros and made the right arrow go up and the left arrow go down. I plotted my first point by pluggin in -1. My first point is (-1,2). ...
*Wednesday, February 13, 2008 at 4:50pm by Miley*

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