Use the given graph to determine the open intervals on which the function is either increasing, decreasing, or constant. Enter solutions using interval notation. If no interval exists where the function is either increasing, decreasing, or constant, enter DNE. 10- 9 8- 7 54 3 2 10-9-8-7-6-5-4-3-2-1. 2 P 3 4 5 -6- 7 -8- -9- 10+ 1 2 3 4 5 6 7 8 9 10 The function is increasing on the interval(s): The function is decreasing on the interval(s): The function is constant on the interval(s):