Question

Locate where the function is decreasing and increasing and any minimum and maximum values.

Answer 1

My answers are...

min at -10 and 12
max at 10
in the order of the given intervals, the function is decreasing, increasing, increasing, decreasing, and increasing

Answer 2

What happens at x = 0?

Answer 3

Both intervals with 0 are increasing, so is there a minimum at 0?

Answer 4

Nope. It might pause there (look at y = x^3), but not max or min.