Draw the general shape of the indifference curves associated with each of the following situations. Also, put in a budget constraint and identify the optimum.
a. Nickels and dimes are the two commodities.
b. Right and left shoes are the two commodities.
c. The more salted peanuts you eat the more you want (use money as the other commodity).
d. You would have to be paid to eat jalapeƱo peppers (use money as the other commodity).
e. You can't tell the difference between margarine and "the high-priced spread."