Patrick consumes only two goods: Celtic Music concerts and Celtic Springs Water. Patrick earns $100 per month at his part-time job in the library. The price of Celtic concerts is $10. The price of Celtic Springs Water is $2. Patrick currently goes to 5 Celtic concerts and consumes 25 bottles of Celtic Spring Water in a month.
(a) Draw Patrick's budget constraint and optimal consumption bundle such that Celtic concerts are measured on the horizontal axis.
(b) In April, Patrick receives a 5 percent pay increase. Inflation raises the price of concerts to $10.50 and the price of Celtic Springs Water to $2.10. Draw Patrick's new budget constraint and optimal consumption bundle, considering that the number of Celtic concerts is measured along the horizontal axis. How many Celtic concerts does he attend in April? How many bottles of water does he drink in April?