The graph is an illustration of a linear function
The term that can be used to describe Dan's earning is that he earns $10.25 per hour
How to determine the hourly rate
From the graph, we have the following ordered pairs
(x,y) = {(4,41) (7,71.75)}
The slope (m) is then calculated as:
[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{71.75 - 41}{7 -4}[/tex]
Simplify
[tex]m = \frac{30.75}{3}[/tex]
Evaluate the quotient
[tex]m = 10.25[/tex]
Hence, Dan's hourly earning is $10.25 per hour
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