Consider the utility function for a utility maximizing individual consuming two goods X and Y.
U (X,Y)= X2Y+15. This person pays 3 dollars for good X and 5 dollars for good Y with an income of 150 dollars. (5Y+3X <= 150) Budget constraint.
a. derive the marginal utility for good x. Ux
b. derive the marginal utility for good Y. Uy
c. find the marginal rate of substitution between x and y
d. find the amounts of good X and Y that maximizes this utility
e. compute the utility