Find the intervals on which the function is concave up or down,
the points of inflection, and the critical points, and determine
whether each critical point corresponds to a local minimum or maximum (or neither).
Let

What are the critical point(s) =

What does the Second Derivative Test tell about the first
critical point:

What does the Second Derivative Test tell about the second
critical point:

What are the inflection Point(s) =

On the interval * all * points where

On the interval * all * points where

On the interval * only * points where

On the interval * only * points where

You can earn partial credit on this problem.