The graph of the derivative f' of a continuous function f is shown. (Assume f' continues to co.) (a) On what interval(s) is f increasing? (Enter your answer in interval notation.) y = f'( x) On what interval(s) is f decreasing? (Enter your answer in interval notation. ) (b) At what value(s) of x does f have a local maximum? (Enter your answers as a comma-separated list.) X = N At what value(s) of x does f have a local minimum? (Enter your answers as a comma-separated list.) (a) On what interval(s) is f increasing? (Enter your answer in interval notation.) X = On what interval(s) is f decreasing? (Enter your answer in interval notation.) (c) On what interval(s) is f concave upward? (Enter your answer in interval notation.) On what interval(s) is f concave downward? (Enter your answer in interval notation. ) (b) At what value(s) of x does f have a local maximum? (Enter your answers as a comma-separated list.) At what value(s) of x does f have a local minimum? (Enter your answers as a comma-separated list.) (d) State the x-coordinate(s) of the point(s) of inflection. (Enter your answers as a comma-separated list X : X =