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April 19, 2014

Search: equation of a line

Number of results: 55,192

math/algebra1a
write the equation of the line with x-intercept (-7, 0) na d undefined slope. a) y= -7 b) x= -7 c) y= -7x d) x= 0 The answer is b. This is because an undefined slope is m/0. So, its just a vertical line. Since x=-7, thats the line.
Saturday, May 26, 2007 at 6:28pm by Confused

Calculus
A line has Cartesian equation 3x-2y+3=0 .Determine a direction vector for a line that is parallel to this line. Could someone explain to me why the answer is direction vector: d=(2,3)
Tuesday, April 10, 2012 at 2:40am by Antia

math
A vertical line has the form x=k, where k is the x-coordinate of all points on the line. The given point has an x-coordinate of 23, can you figure out the equation of the vertical line?
Friday, September 7, 2012 at 5:10pm by MathMate

Calculus
Write an equation of the line that passes through the point (i) parallel to the given value, and (ii) perpendicular to the given line. Point(7,1) Line(-5x-5y=90)
Monday, October 8, 2012 at 9:54pm by Rudy

math help
I will assume you want an equation which is parallel to the given line and passing through (-3,12) Then new line will have the same slope, so it will differ from the given line only in its y-intercept: new line: y = 4x + b but (-3,12) lies on it, so 12 = 4(-3) + b b = 24 y = ...
Wednesday, November 27, 2013 at 8:10pm by Reiny

Math
Find the equation for the line with the following. parallel to the line 8x+7y=-7 and containing the point (7,-7) Since it it parallel the equation would have to have 8x, right? Then im not sure what to do.
Thursday, October 7, 2010 at 9:40pm by Hannah

equation of a line
How to find a point on the line? x cordinate is given as x. The diagram is like a rectangle is inscribed in an isosceles right triangle whose hypotneus is 2 units long. AB is another side of the right triangle and P is a point on it(also a vertex of the rectangle). How do I ...
Sunday, November 19, 2006 at 2:26pm by Jen

math 157
slope of given line is 1, so slope of new line is -1 new equation has slope -1 and y-intercept of -1 just write down the equation.
Monday, October 11, 2010 at 11:50pm by Reiny

calculus
Consider the function y=x/(x+1) a) Find dy/dx b) Find the equation of the line tangent to the curve at x=-2 c) Find the equation of the line normal to the curve at x=1
Saturday, October 15, 2011 at 5:41pm by Eric

algebra
For each equation, pick values for x and solve for y. Pick at least three pair of x,y values and then plot these points. Draw a line connecting these points. Do this for each equation. The point where these line graphs intersect is the solution.
Sunday, January 30, 2011 at 7:02pm by helper

10th grade algebra
Plugging in a value of x lets you compute y, or vice versa. It is the equation of a striaght line. What are you supposed to do with the equation? Turn it into an equation for y?
Tuesday, September 22, 2009 at 7:58am by drwls

Algebra (grade 9)
Write an equation in point-slope form of the line that passes through the given points: 1. (5,-6), (1,-7) 2. (6,-3), (-1,9) 3. write an equation of a line that is perpendicular to y=-3x+5 and passes through (4,3).
Sunday, October 18, 2009 at 10:01am by Sam<3

Math
when x=-4, y = 16 when x = 2, y = 4 two intersection points are (-4,16) and (2,4) slope = (4-16)/(2+4) = -12/6 = -2 equation of line: y = -2x + b, but (2,4) lies on it, so 4 = -4 + b b = 8 equation of line: y = -2x + 8 a line with a slope of -2 makes and angle of tan^-1 (-2) ...
Monday, January 23, 2012 at 10:15pm by Reiny

calculus
If f(x)=4x^(5/2), find f'(4) Use this to find the equation of the tangent line to the curve y=4x^(5/2) at the point (4,f(4)) . The equation of this tangent line can be written in the form y=mx+b where m is______ and where b is _____
Monday, February 28, 2011 at 12:57am by cheech

calculus
5. Let f be the function given by f(x) = x3- 7x + 6. a. Find the zeros of f b. Write an equation of the line tangent to the graph of f at x = -1 c. Find the x coordinate of the point where the tangent line is parallel to the secant line on the interval [1, 3].
Monday, November 7, 2011 at 12:09am by Yoona

math
write an equation of the line parallel to the line given by 3x-2y=8 and having the same y- intercept as the line given by 2y+3=-4
Monday, July 18, 2011 at 8:14am by keshia

Math- finding equation
Can someone explain to me how to find the equation pf the line in the form Ax + By + C =0 if a) parallel to x=3 and passes through (-4, 3) b)perpendicular to y=4 and passes through (1, 1) c) passes through the x-int of y=2x-6 and y-int of y=-3x+6 If it is parallel to x=3, the ...
Thursday, February 8, 2007 at 8:20pm by thomas

calc
The equation of the tangent line is y = mx -8, where m is the slope at the tangent point (a,b). At (a,b), the value of y is a^3 - a^2 + 4a + 4 = b and the slope is dy/dx @ x=a = 3x^2 -2x -4 = 3a^2 -2a -4 = m From the tangent line equation, we also know that, at (a,b) b = m a -...
Sunday, September 30, 2007 at 7:01pm by drwls

math, help
What are two solutions for 3x-y=0 am i correct on this inorder to graph (0,0) and (2,6) Because the line goes through (0,0) so how do i get two solutions from that line? You can get two solutions from that line because the first solution (0,0) is from the start of the axons x,...
Saturday, February 10, 2007 at 12:27pm by jasmine20

Math
1) What is the slope of a line that is parallel to y = 2? 2) What is the slope of a line that is perpendicular to y = 2? 3) What is the slope of a line that is parallel to x = -4? 4) What is the slope of a line that is perpendicular to x = -4? I don't get any of these problems...
Wednesday, February 16, 2011 at 5:26pm by Melanie

Algebra 1
First put the equation 2x = 9y + 4 into slope-intercept form - you will basically be solving for y (y=mx+b). That will give you "m," which is your slope. Parallel lines have the same slope, so you now have your slope for your new line too. Next, plug in all of your numbers to ...
Thursday, September 24, 2009 at 8:28am by Ceres

Algebra: please check
Find the equation of a line that passes through the point (1,2) and has a slope of 1/3. Show how you found the equation. Would the equation be: y-2=1/3(x-1) Do I need to finish this? I am not sure how.
Tuesday, June 8, 2010 at 12:10am by bart

algebra or math
That equation is in the form: y = m x + b m is the slope, and b is where the line hits the y axis where x = 0. therefore the slope, m, is 3 any other line with sole 3 is parallel to your line, so for example y = 3 x or y = 3 x + 459.73 or whatever. b does not matter for ...
Wednesday, February 6, 2008 at 5:48pm by Damon

Maths
Line with slope a through a point (x1,y1) has the equation: y=a(x-x1)+y1 Putting a=-2, (x1,y1)=-1,6), we get the line as: y=-2(x-(-1))+6 or y=-2x+4 ....(1) Substitute x=4 in equation 1 to find the value of y, which is the required unknown.
Sunday, May 26, 2013 at 1:14am by MathMate

Algebra 1
Write the equation of the line with slope -2 and y-intercept (0,0).Then graph the line.
Friday, August 31, 2007 at 10:21am by Cynthia

Algebra 1
Write the equation of the line with slope 4 and y-intercept (0,-5).Then graph the line.
Monday, September 17, 2007 at 10:13pm by Cynthia

geometry
The slope of the line will be -4. The equation of the line is (y-1) = -4(x-5) which can be rewritten as y = -4x +21
Tuesday, October 30, 2007 at 1:30am by drwls

math
which line is perpendicular to the line whose equation is 5y+6=-3x? 1) y= -5/3+7 2) y= 5/3+7 3) y= -3/5+7 4) y= 3/5+7
Tuesday, April 21, 2009 at 10:35am by Anonymous

math
which line is perpendicular to the line whose equation is 5y+6=-3x? 1) y= -5/3+7 2) y= 5/3+7 3) y= -3/5+7 4) y= 3/5+7
Tuesday, April 21, 2009 at 7:15pm by Anonymous

math
What is the slope of the line perpendicular to the line whose equation is y= -2/3x-5?
Friday, November 6, 2009 at 1:40pm by Laly

Algebra
Find the equation of the line perpendicular to the line passing through (2,4) and (3,7)
Monday, November 9, 2009 at 10:12am by Pat

geometry
What is the slope of the line perpendicular to the line represented by this equation y = x + 24 ?
Friday, November 12, 2010 at 9:50am by Anonymous

Math help give an example
The equation of a line that is perpendicular to the line y=-7x+4
Thursday, December 13, 2012 at 2:04pm by David

math
What is the equation of the line that contains the point (1,1) and is perpendicular to the line y=2x+1
Monday, June 3, 2013 at 9:33pm by sagrario

Math
What is the slope of a line perpendicular to the line whose equation is y=2x+7
Saturday, September 7, 2013 at 2:17am by Kiki

Algebra
Find the equation of the line with y intercept 2 and perpendicular to the line y = 2/3x -4
Sunday, November 10, 2013 at 10:18pm by Zelda

Calc.-Blanking!
wait actually I don't think you can do that...but then I have a problem. I am supposed to find the distance of the point to the line or something like that of the point (1,-5,2) and the line r=(6,0,1) + t(3,1,2) but I thought you needed the scalar equation in order to find the...
Wednesday, July 9, 2008 at 11:26pm by Derek

math
The line passes through (9,1) and (5,0) The slope is (1-0)/(9-5) = 1/4 y = (1/4) x + b 1 = 9/4 + b b = -5/4 y = (1/4)(x - 5) is the equation of the line.
Wednesday, April 8, 2009 at 11:03pm by drwls

math
equation of the given line in standard form. The line with m = -3/4 and b = -2
Sunday, May 1, 2011 at 11:40pm by Alice

math
equation of the given line in standard form. The line with m = -3/4 and b = -2
Sunday, May 1, 2011 at 11:43pm by Alice

math
equation of the given line in standard form. The line with m = -3/4 and b = -2
Sunday, May 1, 2011 at 11:44pm by Alice

math
the equation of a line perpendicular to the line y = x - 3 and containing the point (8, -2).
Tuesday, June 21, 2011 at 3:19pm by olivia

Calculus
The slope of the f(x) graph, which is itself a straight line, is -2. The slope of a line perpendicular to f(x) must therefore be +1/2. The equation of the perpendicular line is (y-2) = (1/2)(x-2) y = 2 + (x/2) -1 = (x/2) +1
Tuesday, December 18, 2007 at 6:26am by drwls

Math (URGENT)
x + 3 = 0 is a vertical line through x = -3 , y = 0 y can be anything along that line. The equation of a parallel vertical line through (-6,-7) would be x = -6
Wednesday, June 2, 2010 at 11:02pm by drwls

Math
Write the equation of a line whose slope is the same as the line y=-2x=7 and whose y-intercept is the same as the line 2y=x-8.
Monday, November 11, 2013 at 8:34pm by Hannah

calculus
curious question in Calculus. Since the function is a straight line, it seems very odd to be talking about secant lines, anyway .... f(7) = 12 f(8) = 15 rate of change = (15-12)/(8-7) = 3 Note that this is the slope of the given line as expected. The equation of the secant ...
Thursday, March 15, 2012 at 12:09pm by Reiny

maths
find the equation of the line perpendicular to the line 2x+3y=5 at the point (-2,3)
Friday, June 6, 2008 at 5:58am by wynn

math
Write an equation of the line that passes through(6, -10) and is parallel to the line x = 5.
Tuesday, September 23, 2008 at 6:10pm by Tiffany

Algebra
Write an equation of the line containing the point (o,-4) and perpendicular to the line y=1/3x+5
Wednesday, November 5, 2008 at 6:57pm by Thao

Algebra
Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, 2).
Tuesday, June 23, 2009 at 6:35pm by Michelle

Algebra
Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, 2)
Wednesday, June 24, 2009 at 8:08pm by Bonnie

Algebra
Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, 2).
Sunday, June 28, 2009 at 1:56pm by Jamie

Geometry
Give the equation of the line that passes through (-5,-1) and is parallel to the line y=-1/4x
Sunday, November 15, 2009 at 2:52pm by Aleah

Geometry
Write an equation for line k that is perpendicular to line j and passes through points (1,1)
Thursday, March 18, 2010 at 9:33pm by Anonymous

Geometry
Write and equation for a line n that is perpendicular to line k and passes through point (4,0)
Thursday, March 18, 2010 at 9:33pm by Anonymous

Algebra
Write an equation of the line satisfying the given conditions. Vertical line through (6, -6)
Monday, May 17, 2010 at 12:26am by Don

please help
Give the equation of the line that is perpendicular to the line and passes through point (0, -1).
Monday, May 24, 2010 at 5:56pm by Tina

Math
Give the equation of the line that is perpendicular to the line y=-3+7 and passes through point (0,-6)
Tuesday, July 20, 2010 at 2:47pm by Jenna

algebra2
What is the equation of the line passing through (1, 7) and parallel to the line y = x + 5 in standard form?
Sunday, November 21, 2010 at 3:04pm by Rayniya

geometry
write an equation for the line parallel to the given line that contains C. C(-3,7); y=8/9x +7
Thursday, September 29, 2011 at 7:14pm by Terre

geometry
write the equation of a line parallel to the line y=5x-4 through the point (6,7).
Wednesday, December 21, 2011 at 10:08am by Anonymous

algebra
find an equation of i line given the slope and one point on the line m=2;(3,2)
Sunday, October 28, 2012 at 6:17pm by stephanie

mmm
What is the slope of the line that is perpendicular to the line whose equation is 3x +2y = 9?
Thursday, January 3, 2013 at 1:16pm by Anonymous

Math
determine the equation of a line that passes through (2,1) and is parallel to the line 3x-7y=5
Saturday, March 23, 2013 at 6:24pm by k

Algebra
a line passes through the point (-7,-4) and has a slope of 3 write an equation for this line
Sunday, October 20, 2013 at 9:47pm by Tracy

Algebra
a line passes through the point (4,1) and has a slope -4 write an equation for this line
Sunday, October 20, 2013 at 11:05pm by Tracy

Math
Write an equation of a line that is parallel to the line y-3=2(x+5) and goes through the point (5,7)
Wednesday, February 12, 2014 at 3:39pm by Melanie

Algebra 1
2. The line y = 4x - 7 crosses the y axis at: a.(4, 0) b.(0, 4) c.(-7, 0) d.(0, -7) Set y=0 and solve for x You can automaticallly elimintae b. and d. because y has to be 0 when the line crosses the y-axis. Something seems to be wrong with your other choices too, recheck them...
Monday, October 23, 2006 at 4:03pm by Rachel

Math- Calculus
Find an equation of the line that is tangent to the graph of f and parallel to the given line Function: f(x) = x^3 Line 3x-y+1 = 0 ._.; I know the derivative of the function is 3x^2 and I do have the answer in the back of my book just need the way to get it..
Sunday, August 26, 2007 at 9:40pm by Hanna

Calc.
Find the area of the region bounded by the parabola y=x^2, the tangent line to this parabola at (1,1) and the x-axis. I don't really get what this question is asking. It looks like the area of right triangle to me...try the graph, and shade the area under the tangent. Find out...
Tuesday, September 26, 2006 at 8:08pm by Hebe

calc
a) when x=e^2, y = lne^2/e^2 = 2/e^2 and y' = (1-lne^2)/e^4 = -1/e^4 so the equation is x + (e^4)y = c but (e^2,2/e^2) lies on it, so e^2 + e^4(2/e^2) = c c = 3e^2 the equation is x + (e^4)y = 3e^2 ( I am using a quick way to find the equation of a line based on the fact that ...
Monday, May 19, 2008 at 3:16am by Reiny

math plz
hi, is there an equation to finding the perpendicular bisector of a line. for example i had a line b (1,1) and c(8,1) and a was (6,5) how would i find the bisector from a going through line bc? tnx first off, the slope of a perpendicular line is -1/m (m=slope). since you can ...
Sunday, April 15, 2007 at 9:10pm by gordain

Algebra
What is the equation of the line that has a y-intercept of 5 and is parallel to the line represented by the equation below? 2x - y = 16 A. y = 2x + 5 B. y = -2x + 5 C. y = 1/2x - 5 D. y = -1/2x - 5 I guessed B for this one, but another choice of mine was A. I'm not sure which ...
Sunday, November 10, 2013 at 10:52pm by ENGINE

Math
A line passes through (2,-1) and 8,4). How do you write an equation for the line in point-slope form?
Saturday, April 11, 2009 at 3:47pm by Angie

Math
Give an equation of a line perpendicular to the line y=4x having the same y-intercept.
Tuesday, September 15, 2009 at 12:26pm by Karen

math
Give the equation of the line that passes through point (-5, -1) and is parallel to the line y = -1/4x- 7.
Thursday, November 5, 2009 at 10:02pm by chandice

Math
Give the equation of the line that passes through point (-5, -1) and is parallel to the line y = - 14x
Sunday, November 15, 2009 at 3:05pm by Johnnie

math
Give the equation of the line that passes through point (-5, -1) and is parallel to the line y = - 14x - 7.
Sunday, November 15, 2009 at 3:17pm by jeng

Math
Give the equation of the line that passes through point (5, 1) and is parallel to the line y = 3x 1.
Sunday, January 17, 2010 at 9:00am by Tim

Math
Give the equation of a line perpendicular to the line y = 4x having the same y-intercept.
Sunday, January 17, 2010 at 9:01am by Tim

Algebra
Write an equation of the line satisfying the given conditions. Horizontal line through ( -2, -5)
Sunday, January 17, 2010 at 2:21pm by Rene

Math
Give the equation of the line that passes through point (5, 1) and is parallel to the line y = 3x 1.
Saturday, February 20, 2010 at 6:54pm by Crystal

Math
Give the equation of a line perpendicular to the line y = 4x having the same y-intercept.
Saturday, February 20, 2010 at 6:55pm by Crystal

math
Write an equation of the line satisfying the given conditions. A line perpendicular to y=2+3x
Monday, February 22, 2010 at 2:06pm by rmz

Algebra
Write an equation of the line satisfying the given conditions. Horizontal line through (-2, -5)
Sunday, May 16, 2010 at 6:04pm by Kate

math please help
Give the equation of the line that is perpendicular to the line y=x+4 and passes through point (0, -1).
Monday, May 24, 2010 at 8:19pm by Tina

Algebra 2
This is a vertical line 4 units to the left of the y- axis. The equation of this line in STD form: X = -4
Thursday, August 19, 2010 at 11:00pm by Henry

algegra
find an equation of the line that is parellel to the line y=-4x+3 and that passes throught the point (-1,-8) HELP!!
Tuesday, August 24, 2010 at 12:34am by tom13

calculus
find an equation of the tangent line to the curve y = x √x that is parallel to the line y = 1 + 3x.
Wednesday, October 6, 2010 at 9:38pm by Sasha

calculus
find an equation of the tangent line to the curve y = x √x that is parallel to the line y = 1 + 3x.
Thursday, October 7, 2010 at 12:55am by Sasha

math 157
Give the equation of the line that is perpendicular to the line y = x + 4 and passes through point (0, -1)
Monday, October 11, 2010 at 11:50pm by len

Math/Graphing
Give the equation of the line that is perpendicular to the line y=x+6 and passes through the point (0,-4)
Sunday, February 13, 2011 at 1:30pm by David H.

Algebra
determine if the equation of the line f(x) = x + 1 a function using the Vertical Line Test?
Saturday, March 5, 2011 at 1:35pm by laura Mills

math
Write an equation of the line that is parallel to the line y= -x+4 and passes through the point (0,10).
Sunday, May 22, 2011 at 6:13pm by Anonymous

Math
Write an equation of the line that is perpendicular to the line y=2x-1 and passes throgh the point (0,-3)
Sunday, May 22, 2011 at 6:15pm by Erin

Algebra
"A line perpendicular to x + 3y = 5 passes through (1, -1). What is the equation of the line in standard form?"
Thursday, September 22, 2011 at 7:44pm by Dawn

geometry
how did you get 29/3 for C write an equation for the line parallel to the given line that contains C. C(-3,7)y=8/9x +7
Thursday, September 29, 2011 at 7:54pm by Terre

int algebra
write an equation of the line that is parallel to x= -2 and passes through (-3,4) then graph the line
Tuesday, October 18, 2011 at 11:29pm by katty

collge calculus
find an equation of the tangent line to the curve y= x(x)^(1/2) that is parallel to the line y=1+3x
Tuesday, November 1, 2011 at 11:11pm by Anonymous

Algr.2
10(line)2-4a(line)=20 Absolute value How do I solve this equation?
Tuesday, September 4, 2012 at 7:18pm by Jessica

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