Indifference curve: In each of the following examples, the consumer consumes only two goods, x and y. Based on the information given in each statement, sketch a plausible set of indifference curves (draw at least two curves on a set of labeled axes and indicate the direction of higher utility). Then, write down a possible form of the utility function u(x, y) that is consistent with your graph. 3. (3 points) Alan likes wearing both right shoes (x) and left shoes (y). He always needs to wear them as a pair, having a right shoe is useless without the left one and viceversa. 4. (3 points) Emma likes pizza (x) but hates vegetables (y). She is only willing to eat an extra unit of vegetables if she gets to eat an extra unit of pizza. 5. (3 points) Mary likes Coke (x) and Pepsi (y). She is indifferent between them as she is unable to tell the difference between Coke and Pepsi