Let [math]
(A) Use interval notation to indicate where [math] is increasing.

Note: When using interval notation in WeBWorK, remember that:
(i) You use 'inf' for [math] and '-inf' for [math], ('infinity' and '-infinity' work too!).
(ii) 'U' for the union symbol.
(iii) If the interval is empty, write "{}" without the quotation marks.

Increasing:


(B) Use interval notation to indicate where [math] is decreasing.

Decreasing:


(C) Find the average of the [math] values of all local maxima of [math].
Note: If there are no local maxima, enter -1000.

Average of [math] values =


(D) Find the average of the [math] values of all local minima of [math].
Note: If there are no local minima, enter -1000.

Average of [math] values =

Your overall score for this problem is