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Old 03-08-2013   #1
ambright4life
 
Join Date: Mar 2013
Posts: 1
Default Calculus Homework Help

I worked out my problems and got answers, so I just need help with someone telling me if it right or not please! I would greatly appreciate it!

Question

Consider the graph of the function f(x)=x^2-x-12. (a) Find the equation of the secant line joining the points (-2, -6) and (4, 0). (b) Use the Mean Value Theorem to determine a point c in the interval (-2, 4) such that the tangent line at c is parallel to the secant line. (c) Find the equation of the tangent line through c.

Answers

a) y=x-4
b)f'(c)=1
c)y=x-13

Thank you!
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Old 03-09-2013   #2
MAS1

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Originally Posted by ambright4life View Post
I worked out my problems and got answers, so I just need help with someone telling me if it right or not please! I would greatly appreciate it!

Question

Consider the graph of the function f(x)=x^2-x-12. (a) Find the equation of the secant line joining the points (-2, -6) and (4, 0). (b) Use the Mean Value Theorem to determine a point c in the interval (-2, 4) such that the tangent line at c is parallel to the secant line. (c) Find the equation of the tangent line through c.

Answers

a) y=x-4
b)f'(c)=1
c)y=x-13

Thank you!
All of your answers look correct.
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