Question: Consider Maria's demand function x px -3py A. Find the derivative Ox al B. Is x a normal or an inferior good? C. Find her

Consider Maria's demand function x px -3py A. Find the derivative

Consider Maria's demand function x px -3py A. Find the derivative Ox al B. Is x a normal or an inferior good? C. Find her income elasticity Ex , and interpret your results. ax D. Find the derivative its sign and interpret it. (Hint: Rewrite the demand function as apx -1 x = 51(VPx - 3py) and use the chain rule)

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