Question

The profit earned by a hot dog stand is a linear function of the number of hot dogs sold. It costs the owner $48 dollars each morning for the day’s supply of hot dogs, buns and mustard, but he earns $2 profit for each hot dog sold. Which equation represents y, the profit earned by the hot dog stand for x hot dogs sold?

y=48x−2
y=48x+2
y=2x−48
y=2x+48

Answer 1

y = 2x − 48

Explanation: fixed cost is $48 (a loss when x=0), and each hot dog adds $2, so profit = 2x − 48.