This graph shows the movement of Kareem as he travels from his house to different locations throughout his town.
a) What is the domain of this function?
_ ≤ x ≤ _
b) What is the range of this function?
_ ≤ y ≤ _
c) According to the graph, what is the total time that Kareem is not moving?
__ hours
(THE ___'S represent the blank space that needs filled in!)