A consumer's preferences are given by the following linear utility function: u (x, y) = x+y Assume P = 9, Py = 4, and U = 15. (b.) Solve for the Hicksian demand (i.e. compensated demand) for y yH (9,4,15)A consumer's preferences are given by the following linear utility function: u ( x, y) =x+y Assume Px = 9, Py = 4, and U = 15. (a.) Solve for the Hicksian demand (i.e. compensated demand) for x xH (9,4,15) =