Draw indifference curves that represent the following individuals’ preferences for hamburgers and soft drinks. Indicate the direction in which the individuals’ satisfaction (or utility) is increasing.
a. Joe has convex preferences and dislikes both hamburgers and soft drinks.
b. Jane loves hamburgers and dislikes soft drinks. If she is served a soft drink, she will pour it down the drain rather than drink it.
c. Bob loves hamburgers and dislikes soft drinks. If he is served a soft drink, he will drink it to be polite.
d. Molly loves hamburgers and soft drinks, but insists on consuming exactly one soft drink for every two hamburgers that she eats.
e. Bill likes hamburgers, but neither likes nor dislikes soft drinks.
f. Mary always gets twice as much satisfaction from an extra hamburger as she does from an extra soft drink.