Justin and Alexis were Dave and Busters. What you need to pay an initial fee of $ 5.00 and a price per game. Justin played 5 games and paid $ 12.50 in total. Alexis played 7 games and paid $ 15.25 in total. We can express the relationship between the number of games played and the total cost with the ordered pairs (5, 12.75) and (7, 15.25).
Find the rate of change and explain the importance of the rate of change in terms of the problem.