Thursday

September 29, 2016
Number of results: 117,917

**calculus**

the curve with equation 2(x^2+y^2)^2=9(x^2-y^2) is called a lemniscate. find the points on the lemniscate where the tangent is horizontal.

*October 30, 2011 by Lee*

**Calculus**

Can anybody help me with this? Consider the surface xyz = 20. A. Find the unit normal vector to the surface at the point (1, 4, 5) with positive first coordinate. (___,___,___) B. Find the equation of the tangent plane to the surface at the given point. Express your answer in ...

*October 15, 2007 by Mike*

**Calculus**

Find the slope of the tangent line to the graph of f at any given point f(x) = -2x + 6 at (2,2)

*December 18, 2007 by Kelly*

**calculus**

find the point(s) on the graph of y = (2x4 + 1)(x - 5) where the tangent line slope is 1.

*June 16, 2009 by lana*

**calculus**

given f(x)=(x). find the distance of the point P(2,5) from the line tangent to the functions at x=4.

*December 7, 2011 by mike*

**math**

Find the values of a,b, and c if the parabola y=a(x^2)+bx+c is tangent to the line y=-2x+3 at (2,-1) and has a critical point when x=3

*November 22, 2012 by mike*

**calculus**

Find the slope of the tangent line to the graph y = x-3 at the point (0.5, 8). Answer -48 -12 4 16

*February 23, 2014 by shira*

**math class**

Find the slope of the tangent line to the graph y = x^-3 at the point (0.5, 8). -48 -12 4 16

*February 23, 2014 by liana*

**Calculus**

1. If the tangent line to y=f(x) at (4,3) passed through the point (0,2), find f(4) and f'(4). My answer: f(4)=3 f'(4)=1/4

*October 17, 2014 by Anonymous*

**Calculus**

Find a function of the form f(x)=a+bsqrtx that is tangent to the line 2y-3x=5 at the point (1, 4)

*December 22, 2015 by Kaitlyn*

**calculus help please**

Find the points where the tangent line is horizontal or vertical. Find the area under one period of the curve. x= r(deta - cos deta) Y= r(1- sin deta) deta= pie/3

*August 28, 2010 by stan*

**AP Calculus**

Find an equation of all tangent lines for the curve x^2-xy+y^2=16 x=-2 2x-(xy'+y(1))+2yy'=0 2x-xy'+y+2yy'=0 y'(-x+2y)=-2x-y y'=-2x-y/-x+2y y'=-2(0)-y/-(0)+2y y'=-y/2y Not sure what to do now?

*September 14, 2014 by Selena*

**Math/Physics**

For a velocity-time graph, what does the "tangent line of the curve" represent?

*July 13, 2008 by Matt*

**GEOMETRY INSCRIBED ANGLES MULTIPLE CHOICE QUESTION**

segment BC is tangent to circle A at B and to circle D at C. (Not drawn to scale) AB=10 BC=25 and DC=3. Find AD to the nearest tenth. Hint: Draw an auxiliary line from D to segment BA. {There are two circles, the larger one has point A in the center and a dotted line going up ...

*May 15, 2012 by aYaMe ;)*

**Calculus**

The expression dy/dx = x*(cube root y) gives the slope at any point of the graph of the function f(x) where f(2) = 8. A. Write the equation of the tangent line to f(x) and any point (2,8). B. Write an expression for f(x) in terms of x. C. What is the domain of f(x)? D. What is...

*April 26, 2015 by ashley*

**calculus**

find,if any, an equation for a common tangent line to these 2 curves:5x^2;and 5x^2-x+6

*October 12, 2010 by lam*

**calculus**

y=3⋅2^x Find the equation of the line tangent to the graph of y at x=1.5.

*October 14, 2010 by jordyn*

**Calculus**

Find the equation of the tangent line to the graph of f(x) = −6x ln(x + 10) at x = 0.

*October 20, 2010 by Erika*

**Calculus**

Find the equation of the line tangent to the graph of f at (1,1) where f is given by f(x)=2x^3-2x^2+1

*February 8, 2011 by Grace*

**Ap Calculus**

Find the equation of the tangent line to the graph of f(x)=cos3xlnx^4 at (1,0)

*February 10, 2011 by Dinorah*

**algebra 2**

how to find equation of horizontal tangent line of 2y^3+6x^2y-12x^2+6y=1

*April 4, 2011 by Anonymous*

**Calculus**

Find the equation of a circle with center C(1,6) and tangent line x-y-1=0.

*July 29, 2011 by Cad*

**Calculus**

Find the equation of the tangent line to the graph of √(xy)=x-2y at (4,1)

*April 17, 2012 by Alan*

**Calculus**

Find the slope of the tangent line to the graph of the equation: y = (2x^2+3)(x-1) at x=2. a = 11 b = 08 c = 19 d = 16

*April 26, 2012 by What's the Difference?*

**calculus**

Find the equation of the tangent line to the graph of the function f(x)=x-3/3x-5 at x=1

*October 22, 2012 by Derik*

**maths**

Find the equation of the tangent to circle x + y - 6x + 4y - 12 = 0 which is parallel to line 4x +3y +5

*January 4, 2013 by nanuna*

**calculus**

Find the equation of the tangent line to the ellipse x 2 + 4y 2 = 25 when x = 3 and y < 0. Answer 3x - 8y = 7 3x - 8y = 25 3x + 8y = 7 3x + 8y = 25

*February 23, 2014 by shira*

**Urgent Calculus Help 2**

Find the equation of the tangent line to the graph of f(x) = 6x ln(x + 4) at x = 2.

*July 9, 2014 by Anonymous*

**Calculus**

Find the equation of the tangent line to f(x)=sec x - 2 cos x at (pi/3, 1).

*August 30, 2015 by Anonymous*

**Calculus**

The City Electric System(CES) recently constructed a major transmission line along parts of South Street in the city. The transmission lines are strung between power poles and the hanging lines form a catenary curve. For this Problem we will use the following equation y=(T/w)...

*March 7, 2016 by Jay*

**calculous**

3.Given the function f defined by f(x)=2x^3-3x^2-12x+20 a.Find the zeros of f b.Write an equation of the line perpendicular to the graph of f at x = 0 c. Find the x and y coordinates of all points on the graph of f where the line tangent to the graph is parallel to the x axis.

*November 5, 2011 by Yoona*

**Calculus**

I am not sure what to do here: Find the derivative (f '(x) using the limit process a). f(x)= 2x^2+5x+2 find f ' (2) b.) Find the equation of the Tangent Line at (1,5)

*May 21, 2012 by Sam*

**Math**

Find the function f, given that the slope of the tangent line at any point (x,f(x)) is f '(x) and that the graph of f passes through the given point. f '(x)=6(2x-7)^5 at (4, 3/2)

*April 9, 2014 by Vanessa*

**Linear Approximation**

Use linear approximation, i.e. the tangent line, to approximate 1/0.104 as follows: Let f(x)=1/x and find the equation of the tangent line to f(x) at a "nice" point near 0.104 . Then use this to approximate 1/0.104 . L(x)=f(a)+f'(a)(x-a)...i think. You're notation is slightly ...

*October 14, 2006 by Jojo*

**maths**

1) Circle centre (7,-2) passes through (-2,10). Calculate radius and find equation of circle. 2) AB is diameter of circle A(9,5) B(-1,-7). Find equation of circle mid point. I know i have to use the eqn (x1+x2)/2 and (y1+y2)/2 3) Find the equation of circle with centre (-8,5...

*February 24, 2008 by Anonymous*

**algebra**

Write the equation of the line that passes through point (5, 4) with a slope of 0. would this be x=5 then? no x=5 is the equation of the vertical line passing through (5,4) Any horizontal line, (slope=0), has an equation of the form y = b notice that this is a variation of the...

*May 13, 2007 by stressed*

**mathematics**

The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2.1.1 equation of new circle which is the rotation of original circle through 180 degree around the origin...2.1.2 find equation of another circle which is the translation (x;y)-(x-8;y-6) of the points of the ...

*March 21, 2013 by Jossie*

**Calculus**

Find the linear approximation of the function f(x)=^3sqrt(1+3x) at a=0 and use it to approximate ^3sqrt(1.03)Is this an overestimate or underestimate of the actual value? Explain your answer in terms of the tangent line and the curve.

*April 11, 2013 by Anonymous*

**Pre- Algebra**

Given an equation of a line, how do I find equations for lines parallel to it going through specified points Simplifying the equations into slope-intercept form. 1. y= -2x -4; (1, 3) how do I write the equation of a line parallel to the given line but passing through the given...

*August 14, 2013 by Roosevelt*

**Calculus**

Mathematica Project - Position, Velocity, and Acceleration? A rocket is fired vertically upward into the air from a launching platform 100 ft above the ground. The platform is then retracted, and the rocket is allowed to fall to the ground. The height (in ft) of the rocket ...

*July 19, 2013 by Ken*

**calculus**

Find the slope of the tangent line to the graph of the function at the given point. g(x) = 3 x + 4, (-4, 1)

*March 2, 2010 by B*

**calculus**

f(x)=3-5x , (-1,8) find the slope of the tangent line to the graph of the function at the given point

*February 11, 2011 by art*

**calculus**

given f(x)=sqrt(x). find the distance of the point P(2,5) from the line tangent to the functions at x=4.

*December 8, 2011 by mike*

**MATH**

Find the slope of the tangent line to the graph of the function at the given point. g(x) = 7/2x + 9, (-2, 2)

*February 13, 2012 by Anonymous*

**MATH**

Find the slope of the tangent line to the graph of the function at the given point. g(x) = 7/2x + 9, (-2, 2)

*February 13, 2012 by Anonymous*

**maths**

Find parametric equations of the line that is tangent to the parabola y = x^2 at the point (−2, 4).

*December 11, 2012 by ramesh*

**Precalc**

A line in space has the vector equation shown here. Fill in the blanks to find the position vector to the fixed point on the line that appears in the equation: vector r=(5+(6/11)d)vector i + (3+(9/11)d)vector j + (7+(2/11)d)vector k vector v= _____ vector i + _____ vector j + ...

*January 18, 2012 by Grace*

**economics**

elow kindy ans. my question pls.. what is optium point in budget line and indefference curve, and also what is the diff. between budget line and indefference curve?..

*February 21, 2009 by vanie*

**Algebra 1**

Algebra 1 help please :( Use the point-slope from linear equation given to complete the following problems.... y+4=-4(x-2) 1. What is the slope of the given line? 2. What point does this line pass through, which is the basis of this equation? 3. Rewrite this equation in slope-...

*February 23, 2016 by Anonymous*

**math**

Let AB be the diameter of circle Γ1. In the interior of Γ1, there are circles Γ2 and Γ3 that are tangent to Γ1 at A and B, respectively. Γ2 and Γ3 are also externally tangent at the point C. This tangent line (at C) cuts Γ1 at P and Q, ...

*May 8, 2013 by hemant*

**calc**

Let f(x)=2x+15−19ex. Then the equation of the tangent line to the graph of f(x) at the point (0,−4) is given by y=mx+b for m=? b=?

*April 6, 2015 by Anonymous*

**calculus**

how would i go about finding the tangent line to the curve of sqrt(1+4x^2y^2)-3xy=-18 with the points (3,6)?

*November 19, 2012 by Anonymous*

**calculus**

Find dy/dx 4x^2+y^2-8x+4y+4=0, find points on graph of the equation where there is a vertical or horizontal tangent line

*October 11, 2010 by tia*

**Simple Calculus**

Let y = x^3 + ax^2 + bx. If (x,y) = (2,64) is a point on the curve and the slope of the tangent at x=-1 is 3, what is the value of a+b?

*March 28, 2013 by Lucy*

**math**

The angle which the tangent to the curve at the point (2, 5) makes with the horizontal

*February 10, 2015 by John*

**math**

The gradient of the tangent to the curve y= ax^3 + bx at the point ( 1, 1) is -5. Calculate the values of a and b

*March 1, 2015 by kudu*

**math**

The gradient of the tangent to the curve y= ax^3 + bx at the point ( 1, 1) is -5. Calculate the values of a and b

*March 2, 2015 by kudu*

**Calculus**

Use implicit differentiation to find the slope of the tangent line to the curve y/(x+7y)=x^5+7 at the point (1,(-8/55). can anyone help me work out the problem step by step? y (x+7y)-1 = x5 +7 dy(x+7y)-1-y((x+7y)-2*(dx +7dy)=5x4 multiply it out, gather the dx and dy terms, and...

*May 19, 2007 by jimmy*

**Calculus**

Graph the function f(x)=x+4/x Graph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find the number c that satisfies the conclusion of the Mean Value Theorem for f on [1,8] c= Notice that if you graph the tangent line to the point (c,f(...

*February 8, 2015 by Bob*

**calculus**

if the tangent line to the function f(x)=x +a at x=16 has equation y=mx+6. find a and m. you may use the fact that f'(x)= 1/(2x)

*September 28, 2010 by Jenny*

**math-calc**

function f(x)=3x^2-2x-1 find equation of the line that is tangent and parallel to 8x-2y+12=0

*February 27, 2011 by shakira*

**calculus**

If f(2)=-3, g(x)=f^-1(x), what is the equation of the tangent line to g(x) at x=-3? I don't know how to find g(x), if you can help me with that, then I think I can do the rest of the problem

*April 20, 2011 by Sam*

**calculus**

Let f(x) = x ^3. The equation of the tangent line to f(x) at x = 3 is y= ?. Using this, we find our approximation for 2.7 ^3 is

*October 31, 2014 by Alessandra Romano*

**math**

find the equation of tangent line to the graph of f(x)=xcosx(√2 x) at a=0

*December 27, 2015 by selina*

**math**

find the equation of tangent line to the graph of f(x)=xcos(√2 x) at a=0

*December 27, 2015 by selina*

**Calculus**

Using the definition of the derivative, find the equation of the tangent line to y=2x-1/2 at (1/2,-1) Thanks!!

*February 5, 2016 by Sarah*

**calculus**

Find the x-coordinates of all points on the curve f(x) = sin 2x − 2 sin x at which the tangent line is horizontal. (Enter your answers as a comma-separated list. Use n to represent any integer.)

*September 23, 2012 by Anonymous*

**Ap calc.. Dying!! Please help!**

Given the curve x^2-xy+y^2=9 A) write a general expression for the slope of the curve. B) find the coordinates of the points on the curve where the tangents are vertical C) at the point (0,3) find the rate of change in the slope of the curve with respect to x I don't even know...

*January 25, 2013 by Aparna*

**calculus**

a curve is such that dy/dx = x^2 - 1 Show that no tagent to this curve is parallel to the line with equation 3x + 2y - 4 = 0

*October 25, 2012 by yuen*

**Calculus**

Hello, my question is the following: The derivative of f(x) = ln(x) is given by f'(x) = 1/x. Find an equation of the tangent line to the graph y = ln(x) that passes through the point (0,0). So if I go through this using the typical method I use I have the point slope formula ...

*September 27, 2014 by Joshua*

**Linear Algebra**

Last number from the sample test! A plane P passes by the coordinates: A(1,0,-7); B(-2,-1,0); C(0,0,-3) Using the equation of the line D: x= 7+12t, y= -1-6t, z= 2-2t, Find the equation of a line that's entirely part of the plane P and that is perpendicular to the line D at ...

*September 10, 2012 by Robert*

**math**

A line L1 passes through point (1, 2) and has gradient of 5. Another line L2, is perpendicular to L2 and meets it at a point where x = 4. Find the equation for L2 in the form of y = mx + c

*February 20, 2015 by kudu*

**math**

First find the general derivative of f (x) = {√(x−1)} . Then find the equation of the tangent line to the graph at x = 10.

*April 25, 2011 by billy*

**MATH**

Find the slope of the tangent line to the graph of the function at the given point. g(x) = 17 − x^2; (3, 8)

*February 13, 2012 by Anonymous*

**Applied Calculus**

Let f(x) = x3 − 4x2. Find the point(s) on the graph of f where the tangent line is horizontal.

*March 1, 2013 by Jacob*

**Calculus**

which of the following is not a type of break in the graph? a) holes b) horizontal asymptotes c) jumps d) vertical asymptotes I know for sure that a is not the answer and i doubt that c is the answer. I think the answer would be b. 2. Describe what can be inferred about the ...

*April 9, 2014 by Sarah*

**Calculus**

(a) Find the tangent line approximation for sqrt(9+x) near x=0. (b)Find a formula for the error, E(x),in the tangent line approximation found in part (a). For part A, is the answer y=3. For part b, I don't understand , any help would be greatly appreciated.

*November 5, 2008 by George*

**Calculus**

With y=f(x) (2x-10)^1/2 having a virtual line joined at point Q from the origin (0,0), determine the coordinates of point Q that maximises the angle of vision of an observer, situated at the origin, following the movement of point Q along the curve. Note that tan (theta symbol...

*November 15, 2011 by Jim*

**calculus**

Describe the slope of the tangent line to the curve defined by x 2 + xy - y 2 = 5 when x = 2. positive negative zero undefined

*February 23, 2014 by shira*

**MATH**

Let m be any real number. Then the equation (m+1)^2 x-my-m^2-1=0 is a line. There is a unique point which this line goes through no matter what the value of m is; find the coordinates of this point.

*June 14, 2011 by Janice - Please Help!!!*

**math (please help)**

1. Write the equation for the horizontal line that contains point G(-8, 8). 2. What is an equation for the line that passes through points (-1, -4) and (1, 4)? Write the equation in slope-intersect form. 3. Write an equation for the vertical line that contains point E(10, -3).

*October 31, 2013 by kaitlyn*

**calculus--please helpp**

if the line 3x-4y=0 is tangent in hte first quadrant to the curve y=x^3+k, find k. all i know is that its related to finding a derivative and i m basically completely lost....can please someone provide me some help?????

*October 14, 2011 by krishna*

**calculus**

Whats the slope of the tangent to the curve y=7/(square root of x) at the point where x=a>0?

*September 7, 2011 by Shellie*

**calculus**

Whats the slope of the tangent to the curve y=7/(square root of x) at the point where x=a>0?

*September 7, 2011 by Shellie*

**calculus**

dy/dx= (2x-2xy)/(x^2+2y) Find all points on the curve where x=2. Show there is a horizontal tangent to the curve at one of those points.

*October 18, 2007 by ssss*

**calculus**

dy/dx= (2x-2xy)/(x^2+2y) Find all points on the curve where x=2. Show there is a horizontal tangent to the curve at one of those points.

*October 20, 2007 by sara*

**calculus**

dy/dx= (2x-2xy)/(x^2+2y) find all points on the curve where x=2. show there is a horizontal tangent to the curve at one of those points.

*October 30, 2007 by sara*

**calculus**

Consider the following. y = x2 − 9x x2 + 5x at (3, − 3 4 ) (a) At the indicated point, find the slope of the tangent line. (b) At the indicated point, find the instantaneous rate of change of the function.

*March 10, 2011 by Adam Janky *

**Math grade 10**

a)determine whether the point A(-2, -6) lies on the circle defined by x^2 + y^2 = 40 b) find an equation for the radius from the origin O to point A c) Find an equation for the line that passes through A and is perpendicular to OA

*December 23, 2009 by alyssa*

**graphing question**

Write the equation of the line with slope 4 and y-intercept (0, 5). Then graph the line i wrote the equation which i think is y=4x-5 i point the y intercept (0,-5) in the graph how do i find the other point would the 4x become 4/1 x y=4/1x-5 then move run and rise run of 1 ...

*April 13, 2007 by linda*

**trigonometry**

Find the equation of a line passing through the origin so that the tangent of the angle between the line in quadrantI and the positive x-axis is sqrt3/3. A. y=sqrt3/3x B. y=sqrt3x C.y=x D.y=sqrt2/2x thnks alot:)

*January 16, 2009 by y912f*

**Parametric derivatie help plz**

Find the eqation of the line tangent to the parametric curve define by x=cos2t and y=sin3t and t=pi/12 plz i don't no where to start from show working

*October 28, 2015 by Collins*

**calculus**

If f(x)=x^3. Yhe equation of the tangent line to f(x) at x=4 is y=? Using this, we find our approximation for 3.8^3 is ?

*November 5, 2009 by Jenny*

**calculus**

Find an equation of a line that is tangent to y=2sinx and whose slope is a maximum

*April 12, 2010 by Anonymous*

**calculus**

If the tangent line to the function f(x)=x+a at x=16 has equation y=mx+2, find a and m . You may use the fact that f'(x)=12x . a= , m=

*February 2, 2012 by Anonymous*

**AP Calc.**

find the equation of the tangent line to f(x)=square root x passing through (-4,0)

*November 2, 2012 by asaereay*

**Analytic Geometry**

Find the equation of a circle passing through and tangent to the line x-3y+8=0

*January 25, 2013 by Lance*

**Analytic Geometry**

Find the equation of a circle passing through (3,7) and tangent to the line x-3y+8=0

*January 25, 2013 by xavier*

**Calculus check**

Find the equation of the line tangent to y=tan2x at x=pi/8 A. y-1=sqrt(2)(x-pi/8) B. y-1=1/2(x-pi/8) C. y-1=1/4(x-pi/8) D. y-1=2(x-pi/8) E. y-1=4(x-pi/8) I got A

*March 15, 2015 by Sarah*

**Math**

Suppose h(x)= sqrt(f(x)) and the equation of the tangent line to f(x) at x=1 is y=4+5(x−1). Find h′(1).

*February 22, 2016 by Kyle*