Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars, are described, respectively, in the following equations.

Question

Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars, are described, respectively, in the following equations. 
p = 310-1x-1/2y

q = 730-1/2x-1/7y 
(a) What is the weekly total revenue function R(x,y)?

Kuai · Answer

R(x,y) = xp + yq x(310-1x-1/2y) + y(730 -1/2x -1/7y) 310x -x^2 -1/2xy + 730y -1/2xy -1/7y^2 = -x^2 -1/7y^2 -xy + 310x + 730y

fdsa · Answer

fda