A hair salon charges a fixed rate of $25.00 for a haircut and then an additional $15 for any other services. Write a function to model the cost of services there and then determine how many services you had if you were charged $25.

A)

f (x) = 15x + 25; f (0) = 25

B)

f (x) = 25x + 15; f (.4) = 25

Eliminate

C)

f (x) = 15x + 25; f (25) = 400

D)

f (x) = 25x + 15; f (25) = 640

Question

Mathematics

Janet Mann

4 May, 12:43

A hair salon charges a fixed rate of $25.00 for a haircut and then an additional $15 for any other services. Write a function to model the cost of services there and then determine how many services you had if you were charged $25.

A)

f (x) = 15x + 25; f (0) = 25

B)

f (x) = 25x + 15; f (.4) = 25

Eliminate

C)

f (x) = 15x + 25; f (25) = 400

D)

f (x) = 25x + 15; f (25) = 640

+3

Answers (1)

Know the Answer?

Amiya Barron · Answer 1

A) f (x) = 15x + 25; f (0) = 25

Step-by-step explanation:

x represents the amount of extra services, and 15x respresents the amount paid for all of the services. 25 represents the initial fee. f (0) = 25 means that it cost $25 for a haircut with no extra services.

Let's say you have a haircut with two extra services. You would replace the x in the equation with the number of extra services, 2 in this case.

f (2) = 15 (2) + 25

f (2) = 30+25

f (2) = 55

It would cost $55 for a haircut with 2 extra services.

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