Calculus Homework Help - XP Math - Forums

 XP Math - Forums Calculus Homework Help

 03-08-2013 #1 ambright4life   Join Date: Mar 2013 Posts: 1 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!
03-09-2013   #2
MAS1

Join Date: Dec 2008
Posts: 249

Quote:
 Originally Posted by ambright4life 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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