- Determine the intervals on which
f is concave up and concave down. intervalf is concave up on:f is concave down on:

- Based on your answer to part a, determine the
inflection points of
f . Each point should be entered as an**ordered pair**(that is, in the form(x, y) ). The inflection points are - Find the critical numbers of
f and use the Second Derivative Test, when possible, to determine the relative extrema. List only thex -coordinates.- Relative maxima at
x= - Relative minima at
x=

- Relative maxima at

You can earn partial credit on this problem.