At the local theater, it costs 10$ for 2 people to see a movie. 15$ for 3, and 20$ for 4. Let the number of students be the input. What is the function rule that relates to the number of students to the cost of tickets????
The function rule that relates to the number of students to the cost of tickets is $5. Each time there is another person added, another $5 is added to the price for the tickets.
