February 27, 2017

Homework Help: College Math

Posted by Ronnie on Saturday, June 19, 2010 at 1:06pm.

I have been struggling with this problem I cannot get the right answer. Please give me the steps to solve this problem.
Let f(x)= (2x-9)(x^2 + 6)
(A) Find the equation of the line tangent to the graph of f(x) at x=3
(B) Find the values(s) of x where the tangent line is horizontal.

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