GRAPHS, FUR1 2005 VCAA 5 MC

An electrician charges a fixed call-out fee of `$50` and then charges `$65` per hour for each hour worked.
For `n` hours worked, the total charge in dollars is

A. `115`

B. `n + 115`

C. `50n + 65`

D. `65n + 50`

E. `115n`

Show Answers Only

`D`

Show Worked Solution

`text(Fixed call out fee)`	`= $50`
`text(Hourly charge)`	`= $65\ text(per hour)`
`:.\ text(Total charge)`	`= $50 + $65n`

`(n = text(hours worked))`

`=> D`