Question

A satellite tv company charges a one-time installation fee and a monthly service charge. The total cost is modeled by the function y = 99x + 15. Which statement represents the meaning of each part of the function?

1) y represents the total cost
2) 99 represents the one-time installation fee
3) x represents the monthly service charge
4) 15 represents the total cost

Answer 1

The total cost is determined by multiplying the monthly service charge by 99 and adding the one-time installation fee of 15. The value of 15 represents the cost at the start, when x is 0.

Step-by-step explanation:

The statement that represents the meaning of each part of the function is:

1. y represents the total cost
2. 99 represents the one-time installation fee
3. x represents the monthly service charge
4. 15 does not represent the total cost, but the y-intercept of the function

The function y = 99x + 15 means that the total cost (y) is determined by multiplying the monthly service charge (x) by 99 and adding the one-time installation fee of 15. The value of 15 represents the cost at the start, when x is 0.