Question

A new video game is expected to sell 130 copies the first hour at a local game store. After that, the sales will follow the function s(x) = 9(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) = 9(x - 1) + 130 <== ur equation

Answer 2

The function
`f(x)=9x+121` shows total sales.

Explanation:

The expected number of video game copies is 130 which are sell in the first hour at a local game store.

After that, the sales will follow the function

`s(x)=9(x-1)`

Where, x is the number of hours.

The function that shows total sales, including the first hour is

`f(x)=130+s(x)`

`f(x)=130+9(x-1)`

`f(x)=130+9x-9`

`f(x)=9x+121`

Therefore the function
`f(x)=9x+121` shows total sales.