Posted by Hanna on Sunday, August 26, 2007 at 9:40pm.
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 3xy+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..

Math Calculus  Corin, Monday, August 27, 2007 at 12:24am
Sorry in advance I don't know how to find the answer, but I'm willing to help all I can.
First, rearrange the equation of the line to make it y=3x1. Since we need to find a line parallel to this one, we know it needs a slope of 3.
y=3x1
y=mx+b
m=slope
m=3
What is the answer the back of the book gives? Sometimes it's possible to work backwards from the answer.
Sorry that's as far as I could go.
I'll try to help you out all I canI'm trying to work it out right now.
Cori
Answer This Question
Related Questions
 Math (equation of tangent line)  Consider the implicit equation 2xy1=(x+y+1)^2...
 Math please help  Find an equation of the line that is tangent to the graph of ...
 MATH  Find an equation of the line that is tangent to the graph of f and ...
 calculus  Find an equation of the line that is tangent to the graph f and ...
 calculus  5. Let f be the function given by f(x) = x3 7x + 6. a. Find the ...
 Calculus  1. a) For the Function and point below , Find f’(a). b) Determine the...
 Calculus  1. a) For the Function and point below , Find f’(a). b) Determine the...
 Calculas  Find an equation of the line that is tangent to the graph of f and ...
 Math (Calculus) (mean value theorem emergency)  Consider the graph of the ...
 Calculusmath  Find an equation of the line that is tangent tothe graph of f ...
More Related Questions