1. For the following economies, find an equation for the set of feasible, Pareto efficient allocations and graph it. (a) Society has 100 units of a private good available to share between two consumers with utility functions UA(XA) = V10xA UB(XB) = V20XB (b) There are two private goods which are in fixed supplies X and Y, and two consumers A and B with utility functions UA(XA, yA) = XA UB(XB, yB) = min {xB, yB)