Given the graph of the function f, answer the questions appearing below. At which point(s) in the interval shown is f'(x) = 0? If there is more than one -value, then separate with commas. For example, = 2, 3. If no such point exists, then enter DNE. 2 246 10 On which interval(s) is f increasing? On which interval(s) is f decreasing? -10