(1 point) Find the maximum and minimum values of the function f(x, y) = 2x + 3y - 4x-5 on the domain x + y 144. The maximum value of f(x, y) is: 25 List the point(s) where the function attains its maximum as an ordered pair, such as (-6,3), or a list of ordered pairs if there is more than one point, such as (1,3), (-4,7). (12,0) The minimum value of f(x, y) is: -11 List points where the function attains its minimum as an ordered pair, such as (-6,3), or a list of ordered pairs if there is more than one point, such as (1,3), (-4,7). (1 point) Suppose f(x, y) = x + y + xy + 2 and D = {(x, y) : |x| 1, |y| 1}. Answer the following. 1. Find the absolute maximum of f(x, y) on the region D. Answer: 2. Find the absolute minimum of f(x, y) on the region D. Answer: (1 point) A company manufactures x units of one item and y units of another. The total cost in dollars, C, of producing these two items is approximated by the function C = 4x + xy + 7y + 900. (a) If the production quota for the total number of items (both types combined) is 280, find the minimum production cost. cost = 216900.76 (b) Estimate the additional production cost or savings if the production quota is raised to 281 or lowered to 279. production cost or savings = 1551.24