Find the open intervals on which the function f (s) = -3 + 4: + 8 is increasing or decreasing Note: Use the letter U for union. To enter oo, type the word infinity If the function is never increasing or decreasing, enter NA in the associated response area increasing: decreasing Find the local maximum and minimum values of the function f (z) = -312 + 4x + 8 Enter your answers in increasing order. . If there is just one local maximum or minimum value, then in the second row below enter NA as the answer for "I =" and select 'NA in the "there is" drop-down menu. . If there are no local maximum or minimum values, then in both rows below enter NA as the answer for "I =" and NA in the "there is" drop+down menu. At I = GOD therelist / Glia for List At I = BED .therellis Clic for List