The graph of the derivative f' of a function f is shown. y X y = f(x) x = 2 X 3 4 (a) On what intervals is f increasing? (Enter your answer using interval notation.) (-0,2] 5 X On what intervals is f decreasing? (Enter your answer using interval notation.) [2,00) (b) At what values of x does f have a local maximum? (Enter your answers as a comma-separated list.) X = 5 X At what values of x does f have a local minimum? (Enter your answers as a comma-separated list.) y 2 y 3 1 y 1 2 3 4 2 1 2 3 3 5