Question

Sarah is planning a party at a cafe. The cafe charges a fee of $15 per person, plus an additional flat fee of $22 for music. Which of the following functions describes the average cost per person for Sarah's party in terms of x, the number of people attending the party?

Answer 1

y=15x+22

Explanation:

Answer 2

For this case we have a function of the form
`y = f (x)`

Where:

`f (x) = mx + b`

m: It is the cost of entry per person

b: Fixed cost for music

x: Number of people attending the party

It has that $ 22 is a general cost for the music of the party.

Thus, the cost of the party is given by:

`f (x) = 15x + 22`

Answer:

`f (x) = 15x + 22`