Question

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 evaluate it if you also get a shampoo, highlight, and blow dry.
A)
f(x) = 15x + 25; f(3) = 70
B)
f(x) = 15x + 25; f(1) = 40

C)
f(x) = 25x + 15; f(3) = 90
D)
f(x) = 25x + 15; f(1) = 40

Answer 1

Did you give it a try ?

Answer 2

@iGreen @Rehamzia yes i did i got it wrong

Answer 3

First of all , what did you do ? I mean how did you approach the problem ?

Answer 4

i really kdon't know a friend helped me

Answer 5

Okay lets start from beginning.

Answer 6

ok

Answer 7

Lets imagine that I went only for a hair cut (I really need one). So, how much will it cost me ?

Answer 8

$25.00 and lol

Answer 9

Good you got it right. Btw isn't it a little expensive.

Answer 10

Now, what if I also took my brother with me and we both only wanted a hair cut. What will it cost us then ?

Answer 11

yep ok $50.00

Answer 12

and that is a lot

Answer 13

Good. What if I took some friends with me and we total were x in number? What will it cost us then?

PS: I am going to ask for a discount as you are advertising his shop. :P

Answer 14

@babygirl121314 you there ?

Answer 15

sorry i was trying to talk to my teacher

Answer 16

Its ok

So can you please calculate the calculate the cost for my friends and me (total people = x)?

Answer 17

ok lets see that would be 25x=

Answer 18

yes very good !

Answer 19

thanks

Answer 20

Now, if only I went to the saloon. I wanted a hair cut and one of those things which I don't have any idea about. What would be the cost involved ?

Answer 21

*those things = highlight, blow dry

BTW wasn't it a gents saloon?

Answer 22

i have no clue lol

Answer 23

Its ok. See, the cost of any other service was $15 irrespective of the number of people who wanted the extra services or the number of extra service.

Answer 24

That means whether I want a highlight or my brother wants one or we both want one, the cost for additional service will remain $15.

So, if I calculated the cost for haircut only, then, if there is some additional service taken, I only have to add $15 to the total.

Do you get this ?

Answer 25

ok so 25+15

Answer 26

Yeah

Answer 27

Now, similarly, if me and my brother had gone to saloon and had a haircut as well some additional service. Then net cost would have been:

cost due to haircut only + 15

Answer 28

ok so it would be $40

Answer 29

Good.

Now, what if there were x people going to saloon. They all had a haircut and some even asked for some extra service. So, their net cost would be :

cost if they only had a haircut + $15

Now, can you tell me what this would be ?

Answer 30

gtg

Answer 31

np

Good bye