Some Parents Struggling with Back-To-School Buys

Multiple Choice

Some parents struggling with back-to-school buys. "A couple of years ago, I was able to buy everything practically new," said Charles Lane-Bey, a U.S. Postal Service worker who's struggling to make ends meet. Suppose Charles has $10 to spend on back-to-school clothing for his son, and pants cost 50 cents and shirts cost $1. What is the slope of Charles's budget line if it is drawn with pants on the x-axis?

A) 2
B) -2
C) -1/2
D) 1/2