Question

The Math Club is selling shirts as a fund-raiser. The company charges a set-up fee plus a certain cost for each shirt. The function rule C = 9n + 45 represents the Math Club's cost, with C representing the total cost of the order, and n representing the number of shirts. What could the numbers in the function represent? Select all that apply.

Responses
45 is the minimum number of shirts
45 is the minimum number of shirts

9 is the price per shirt.
9 is the price per shirt.

9 is the initial set-up fee charged to design the shirts.
9 is the initial set-up fee charged to design the shirts.

45 is the price per shirt.
45 is the price per shirt.

45 is the initial set-up fee charged to design the shirts.
45 is the initial set-up fee charged to design the shirts.

Answer 1

Answer: The function rule C = 9n + 45 represents the cost of the shirts that the Math Club is selling. The variable C represents the total cost of the order and the variable n represents the number of shirts.

The number 9 in the function represents the price per shirt, this is because as the number of shirts increases by 1, the total cost increases by 9. This tells us that the cost of each shirt is $9.

The number 45 in the function represents the initial set-up fee charged to design the shirts. This is because even if no shirts are ordered, there is still a cost of $45. This represents a fixed cost that the Math Club must pay to have the shirts designed.

Explanation: