Question

A new video game is expected to sell 120 copies the first hour at a local game store. After that, the sales will follow the function s(x) = 15(x − 1) where x is the number of hours. What is the function that shows total sales, including the first hour?

Answer 1

s(x)=120+15(x-1)

Explanation:

Answer 2

The first hour, they sell 102 copies.
So the function starts with : s(x) = 102 + ( I put a + after 102 because we know that there are following sales after the first hour ).

Then, the sales are s(x) = 11 (x-1).
So this is the second part of your function.

Answer: 102 + 11 (x-1)