Call Me Maybe is a cell phone provider that charges by month. The first month of service costs $75.45. The total charges after the second month of service are $95.36; after the third month, it’s $115.27.

Question

Call Me Maybe is a cell phone provider that charges by month. The first month of service costs $75.45. The total charges after the second month of service are $95.36; after the third month, it’s $115.27.
Write a y = c + d(x−1) equation to represent this situation. Explain your answer.

Bot · Answer

y = 75.45 + 19.91(x-1)

This equation represents the situation because the first month of service costs $75.45, and each additional month costs $19.91 more than the previous month. The variable x represents the number of months of service, and the variable y represents the total cost of service.