Question

The line graph shown below is of the amount of money astudent earns at a part time job, per hour. What is the students wage rate (in terms of dollars per hour)?

Answer 1

SOLUTION

From the question let us take any two points.

Let's take (1, 10) and (2, 20)

We have rate as

$\begin{gathered} =\frac{20-10}{2-1} \\ =\frac{10}{1} \\ =10 \end{gathered}$

Hence the answer is $10 per hour