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3. Marshallian and Hicksian Demand Functions (20 marks) (a) Graphically derive the ordinary (Marshallian) demand function, with the utility plane in the top diagram and the (q, P) diagram below it. Ordinary demand is a function of what two variables or parameters? (b) On a separate diagram, graphically derive the compensated (Hicksian) demand function in similar fashion. What variable/parameter causes the compensated demand to shift in quantity-price space? (c) On yet a third diagram show the relationship between the ordinary and compensated demand functions. What are the compensated demands for q, and q2