1. Suppose M = 20, p1 = 2 and p2 = 1 initially, but then p1 is then lowered to 1. Show graphically the utility maximizing points chosen by a consumer for whom this good is a Giffen good. Can your sketched indifference curves be consistent with a Cobb Douglas utility func- tion? Explain. 2. What are luxury, nessesary and inferior goods? In a two good world if one good is a luxury good must the other be inferior? Explain