_ ..s.,..w., ...V This exercise analyzes the function f(x) whose derivative f'(x) is graphed below. The domain of this function is the Mental [3, 4]. f(x) (a) Find the intervals on which f(x) is increasing and the inten/als on which it is decreasing. (Enter your answers as comma-separated lists of intervals.) increasing decreasing (b) Find the x-coordinates that produce the local maximum and local minimum of f(x). (Local extrema may fall at endpoints. Enter your answers as comma-separated lists.) local maximum x local minimum x (c) Find the intervals on which f(x) is concave up and the intervals on which it is concave down. (Enter your answers as comma-separated lists of intervals.) concave Up concave down (d) Find the xcoordinates of the points of inection of f(x). (Enter your answers as a commaseparated list.)