I need help with a math problem

Use the given graph to determine the value of the indicated limits.

part 1 (a.) lim f(x)

x (arrow) -5

part 2 (a.)

lim f(x) =

or the limit does not exist

part 1 (b.) lim f(x)

x (arrow) -7

part 2 (b) lim f(x) =

or the limit does not exist