Ray Starr has the utility function U ( x , y ) = y /(100 - x ). a. Does Ray prefer more to less of both goods? b. Draw a diagram showing Ray’s indifference curves corresponding to the utility levels U = 1/2, U = 1, and U = 2. c. How can you describe the set of indifference curves for Ray? d. If the price of x is $1 and the price of y is $1, find Ray’s demand for x as a function of his income and draw a diagram showing his Engel curve for x .