(A) Find all critical values of .
If there are no critical values, enter -1000.
If there are more than one, enter them separated by commas.
Critical value(s) =

(B) Use interval notation to indicate where is increasing.

Note: When using interval notation in WeBWorK, you use
I for , -I for , and
U for the union symbol. If there are no values that satisfy the
required condition, then enter "{}" without the quotation marks.

Increasing:

(C) Find the -coordinates of all local maxima of .
If there are no local maxima, enter -1000.
If there are more than one, enter them separated by commas.

Local maxima at =

(D) Find the -coordinates of all local minima of .
If there are no local minima, enter -1000.
If there are more than one, enter them separated by commas.