Use the graph of the function h below to find the following. all values at which h has a local minimum
all local minimum values of h
if there is more than one answer, separate them with commas.
don't want an answer, just want to know what i'm looking for, maybe an example.

When function changes direction from decreasing to increasing its value or oposite from that you have a local minimum or local maximum. There can be more than 1 local minimum/maximum. 

Here you can see that at coordinates (-2,-3) function has local minimum. It was decreasing its value as you increase x and than it started increasing value. Same goes for (4,-5)

Answers are:
(-2,-3)
(4,-5)

Iknow one of the answers is a and maybe b but not 100% sure about b