Evaluating Functions Word Problems

The math club goes to an amusement park. Student tickets cost $10 each. Teachers go for free. The bus costs $28. The function f(x) = 10x + 28 represents the total amount of money it costs to go to the amusement park if there are x amount of students. What is the value of f(4), the total amount it will cost to go the amusement park with 4 students?

A Bad Bunny concert is $250 per ticket and the cost of parking is free. The functions b(x) = 250x represents the total amount of money it would cost to go to the concert if there are x amount of people going. What is the value of b(24), the total amount it would cost to go to the concert if 24 people went?

Renting a canoe costs $10 plus $28 per day. The function c(x) = 28x + 10 represents the total amount it costs to rent a canoe, for x amount of days. What is the value of c(3), the total amount it will cost to rent a canoe for 3 days?

At a water park, souvenir mugs cost $9.95. Refills of soda cost $2 each. The function f(x) = 2x + 9.95 represent the total amount a mug costs with x amount of refills. What is the value of f(2), the total costs of a souvenir mug with 2 refills?

At a movie theater, tickets for a show cost $12 each. Popcorn costs $5. The function g(x) = 12x + 5 represents the total cost of x tickets with a popcorn. What is the value of g(3), the total cost for 3 tickets and getting a popcorn?