The table represents the number of hours a limousine is rented and the total cost including a flat rental fee in cost per hour. 3 hours $270, 5 hours $410, 7 hours $550, 9 hours $690. What is the meaning of the slope for the data set?

Answer 1

(x1,y1)->(3,270)
(x2,y2)->(5,410)
m = y2-y1/x2-x1 = 410-270/5-3 = 140/2 = 70

This means that you pay $70 for every hour you rent for the limousine. On top of that, you'll need to pay an additional $60 flat fee.