Question

Vince works for his uncle at a lumber yard. Vince's pay is represented by this line graph.How much is Vince paid for one hour of work?

Answer 1

To get how much Vince is paid for one hour of work, we simply find the slope of the graph.

Slope is given as

`\begin{gathered} s=\text{ }(y2-y1)/(x2-x1) \\ \end{gathered}`

Let's consider two points on the line

x1 at 20 hours, which gives y1 at $180

x2 t 40 hours, which gives y2 at $360

Slope becomes

`\begin{gathered} s\text{ = }(y2-y1)/(x2-x1) \\ \\ s\text{ = }(360-180)/(40-20) \\ \\ s\text{ = }(180)/(20) \\ \\ s\text{ = }9 \end{gathered}`

That means Vince is paid $9 at every hour of work.