Question

Linda works at the market and earns $12.5 an hour. Tony works at the libaray. The graph shows the relationshipe between hour worked and the money that tony earns.

Answer 1

We know that Linda earns $12.50 an hour.

Let's find the rate of change of the graph to find Tony's earning ratio.

`r=(y_2-y_1)/(x_2-x_1)`

Let's use the points (0,0) and (4,40).

`r=(40-0)/(4-0)=(40)/(4)=10`

This means Tony earns $10 an hour.

Then, we divide the earnings

`(12.50)/(10)=1.25`

Hence, Linda earns 1.25 times as much per hour as Tony.