SOLUTION: Why am I getting these wrong? max and min of function and finding the function g http://i.imgur.com/6K9sEeV.png Thank you

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Question 910094: Why am I getting these wrong? max and min of function and finding the function g
http://i.imgur.com/6K9sEeV.png
Thank you
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
I did this one for you a few minutes ago including algebraic steps. This was Question Posting 910053.

Note that in ax%5E2%2Bbx%2Bc, vertex is a minimum for a%3E0, and is a maximum for a%3C0.