Find the maximum value and the minimum value of the function and the values of x and y for which they occur. P =20x - 4y + 70, subject to 6x + 9y s 54, 0 sys 4, and OSX$5. . . . The maximum value of the function is and it occurs where x = and y = The minimum value of the function is and it occurs where x = and y = (Do not round until the final answer. Then round to two decimal places as needed.)