Question

The table of values below represents a linear function and shows the amount of money in a tip jar at a dry cleaners since the dry cleaners opened for the day. How much was in the tip jar when the dry cleaners opened?

Amount of Money in a Tip Jar at a Dry Cleaners

Number of Hours Since Dry Cleaners Opened
4
5
6
7
8
Amount of Money in Tip Jar ($)
15.50
18.25
21.00
23.75
26.50

Answer 1

$4.50.

Explanation:

$2.75 is added to the jar every hour.

So at hour 0, when the Cleaners opened:

Amount in the jar = 15.50 - 4(2.75

= 15.50 - 11

= $4.50