André gets utility from playing laser tag and reading books. Each week, André spends his entire $100 paycheck on both goods. One hour of laser tag costs $20; a book costs $10.
a. Graph André's budget constraint. Put books on the horizontal axis and hours of laser tag on the vertical axis.
b. When André maximizes his utility, he buys 6 books. Carefully add an indifference curve to your graph to reflect André's utility-maximizing bundle of books and laser tag.
c. When André maximizes his utility, how many hours of laser tag does he play?
d. When André maximizes utility, the marginal utility he receives from playing an extra hour of laser tag is 12 utils. How much utility must André get from reading another book?