(Solved): 4. [5 pts each] Below is a graph of f', the derivative of f. on (-4,4. 31 y 2 f'(x) MA -4 -3 -2 1 2 ...

4. [5 pts each] Below is a graph of f', the derivative of f. on (-4,4. 31 y 2 f'(x) MA -4 -3 -2 1 2 3 - 1 -2 -3 a) List all critical points of S. Explain your answer. b) Write the open interval(s) for which f is increasing. Explain your answer. c) At each critical point, determine if the critical point is the location of a relative maximum, relative minimum, or neither.