the graph of the derivative f of a function f is shown a on what 12661

Question

The graph of the derivative f' of a function f is shown. (a) On what intervals is f increasing? (Enter your answer using interval notation.) On what intervals is f

decreasing? (Enter your answer using interval notation.) (b) At what values of x does f have a local maximum or local minimum? (Enter your answers as a comma-separated list.)X =