Problem 4. (1 point) Below is the graph of y = f(x). LO 10 1,0 10 -18 Answer the following questions. If there is more than one answer, enter them separated by commas. If there are no answers, enter None in the box. You must include a short explanation of your answer in your written work. The intervals for which f'(x) > 0 and "() > 0 are The intervals for which f'(x) > 0 and "() < 0 are The intervals for which f'(x) < 0 and f"() > 0 are The intervals for which f'(x) < 0 and f"(x) < 0 are