Question

A bowling alley has a one-time charge of $2.50 to rent a pair of shoes and a charge of $2.00 for each game bowled. The function f (x)

represents the total cost to bowl x games.

Which equation represents f (x)?

O A f(x) = 2.5x + 2

O B. f (x) = 2x + 2.5

O c f(x) = (2.5 + 2)x

OD. f (x) = (2.5 - 2)x

Answer 1

B. f (x) = 2x + 2.5

Explanation:

Linear function:

A linear function has the following format:

`y = mx + b`

In which m is the value that y changes by when x increases by 1, and b is the flat fee.

A bowling alley has a one-time charge of $2.50 to rent a pair of shoes and a charge of $2.00 for each game bowled.

This means that
`m = 2, b = 2.50`

So

`f(x) = 2x + 2.5`

And the correct answer is given by option b;