Questions 9 (Choice & Demand). Suppose a consumer's utility function is given by: a) U(x1, x2)=x1 0.4*X2 0.6 What is the consumer's demand for x as a function of income and prices? What is the consumer's demand for x2 as a function of income and prices? Use Lagrange method or your intuition. b) What percentage of income does the consumer spend on x? What percentage of income does the consumer spend on x2?