The figure about shows the gra

The figure about shows the graph of f', the derivative of the function f, for -7 ≤ x ≤ 7. The graph of f' has horizontal tangent lines at x=-3, x=2, and x=5, and a vertical tangent line at x=3.
a) Find all values of x, for -7<x<7,at which f attains a relative minimum. Justify your answer.
b) Find all values of x, for -7<x<7,at which f attains a relative maximum. Justify your answer.
c) Find all values of x, for -7<x<7, at which f"(x)<0
Tutor Answer
