Question: Question 2 ( 1 2 Points - 6 Points each problem ) a . Let f ( x ) = x 4 + 4 x

Question 2(12 Points -6 Points each problem)
a. Let f(x)=x4+4x3. Find the intervals on which f is concave upward and concave downward.
Below is the graph of the derivative function. From this graph determine the intervals in which the function increases and decreases and the x value(s) for any minimum and maximum values.
b.
Question 2 ( 1 2 Points - 6 Points each problem )

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