Find the maximum value and the minimum value of the function and the values of x and y for which they occur. P = 19x - 3y + 70, subject to 7x + 9y = 63, 0 sys5, and Ox$ 6. 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.)