a. Determine the demand functions of x and y in the case of a Cobb-Douglas type utility function, in the following cases: 2. a = 0.40; B = 0.60 - Graph the demand functions of the two goods (price as a function of quantity) assuming the individual's income is $500 - Determine what is the quantity demanded of x and y, if the price of good x is USD 1, the price of good y is USD 4, and income is USD 500 - Now, explain what happens to the quantity demanded if the prices of the goods are doubles holding income constant.