February 21, 2017

Homework Help: calculus

Posted by Janet on Sunday, May 8, 2011 at 11:34pm.

Quadratic function written in standard form where a, b, and c are constants such that a is not zero.
f(x)= ax^2+bx+c

Using calculus find the vertex of the parabola formed by this quadratic function. Determine under what conditions this vertex is a maximum or minumum (using Calculus techniques). Show work using derivatives to justify our conclusions.

THis is what I did so far, but can't figure out the rest.

f'(x)= 2ax + b
-b = 2ax
-b/2a = x

Please help and show steps so that I can understand.

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