1)The points labeled for this function as:
Relative minimum: (0,-5)
Relative Maximum: (-3,4) , (3,4)
2) Relative minimum points are those points in which the function peaks its relative minimum value since this function is a continuous one. Also, in this point, there is a change in the function behavior. after (0,-5) the function starts to increase, and before it was decreasing.
Relative maximum points are those in which the function peaks is maximum within an interval. Similarly, There's also a change in the function behavior at (-3,4) and (3,4) .