Question

An appliance repair service charges a flat fee of $75 per service call with an additional $55 per hour. If h represents the number of hours it takes to do the repair, which function models this situation?

Answer 1

f(h) = 55h + 75

i just took the test and this was the right answer

Answer 2

Answer: Our require expression will be

`75+55h`

Explanation:

Since we have given that

Cost of repair service charges a flat fee per service =$75

Cost of additional charges per hour = $55

Let h be the number of hours it takes to do the repair,

So, our function models this situation like this,

`75+55h`

(because $75 is fixed charges which occurs at the time of service call and $55 is the additional depends upon the hours as the number of hours increases it will also increase. So, it will multiply with h to get the amount according to its number of hours.)

So,our require expression will be

`75+55h`