Rida has been invited to travel with the traveling soccer team. The expenses for this trip

are $500 for room and board and $15 per meal.
a) Derive a formula for the expenses of the trip.
b) On the same axes, graph the functions
c) How much will it cost for 15 meals?

a) The formula for the expenses of the trip is:

Expenses = $500 + $15 x (number of meals)

b) The two functions to graph are:

1. Expenses = $500 + $15x
2. Expenses = $500

c) To find the cost for 15 meals, plug in x=15 into the formula:

Expenses = $500 + $15 x 15
Expenses = $500 + $225
Expenses = $725

Therefore, it will cost $725 for 15 meals.