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? a) s(x) = 130 + 9(x − 1) b) s(x) = 9(x − 1) − 130 c) s(x) = 130x − 9 d) s(x) = 130 − 9(x − 1)

Asked by maham237 @ in Mathematics viewed by 389 People

Answered by maham237 @


The answer is A I believe.

At hour 1, the equation must equal 130,

therefore s(1) = 9(1-1) + 130
s(1) = 9(0) + 130
s(1) = 130

then so on when
s(2) = 9(2-1) + 130
s(2) = 139


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