shown. Identify the open intervals on which the graph of the function is increasing or decreasing. Assume that the graph extends past what is 20-0 16 12- -10 --8 -6 -4 --2 0 2 4 6 8 10 -12- - 16 Note: Use the letter U for union. To enter co, type infinity. Enter your answers to the nearest integer. If the function is never increasing or decreasing, enter NA in the associated response area. increasing: 4 increasing -a graph is said to be increasing when ix' is decreasing: incraving then y also incrasin * decrash - a graph is said to be decran when X is incrally the y is decrosy