Find the open intervals on which the function f (a) = -3x2 + 2x + 3 is increasing or decreasing. Note: Use the letter U for union. To enter co, 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 (ac) = -3ac2 + 2ac + 3. 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 "x =" 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 "x =" and NA in the "there is" drop-down menu. At x = sin (a a ? P, there is Click for List At x = Submit Assignment Quit & Save Back Question Menu Next