The Problem is attached
Determine the location of each of the local extremum and the maximum and minimum values of y=f(x). Sketch the graph and label the critical points and the maximum and minimum values
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Please see attached file
To find the local extremum, we set the first derivative equal to zero.
or a = 3, b = 8, c ...
The expert determines of the location of local extremum and the max ans min values are given.