Ted researched the price of airline tickets and discovered a correlation between the price of a ticket and the number of miles traveled. After recording his data on a scatter plot, he determined the equation for the line of best fit is y = 300 + 0.45x. What does 300 represent in the equation?

Question

A. the number of miles traveled at 0.45 per mile
B. the maximum number of miles allowed at 0.45 per mile
C. the cost of the ticket when the number of miles equals 0
D. the cost of the ticket when the number of miles equals 45
E. the cost of the ticket when the number of miles equals 300

Answer 1

C. the cost of the ticket when the number of miles equals 0

In the equation y = 300 + 0.45x, the constant term 300 represents the cost of the ticket when the number of miles traveled equals 0.