Suppose the utility function for goods x and y is given by:

Suppose the utility function for goods x and y is given by:U(x; y) = xy + ya) Calculate the uncompensated (Marshallian) demand functions forx andy and describe how the demand curves for x and y areshifted by changes in I or the price of the other good.b) Calculate the expenditure function for goods x and y.c) Use the expenditure function calculated in part b) to computethe compensated demand functions for goods x and y . Describehow the compensated demand curves for x and y are shifted bychanges in income or by changes in the price of the other good.