Problem associated with fourth video: demand with perfect substitutes Consider the following utility function u(x1, x2) = 2x1 + x2.
(a) Calculate the MRS for this utility function. Does it depend on x1 and x2. (b) Given an income m and prices p1 and p2 derive the demand function for good 1. Represent it graphically (x1 in the horizontal axis and p1 in the vertical axis).