Of the three lines in the graph ,one has slope 1 ,one has slope 2, and one has slope 1/5

The line that has slope 1 is labelled blue.
The line that has slope 2 is labelled green.
The line that has slope 1/5 is labelled red.
(see attached image)
Slope of any line is the rise/run along the line, which is:
[tex]slope(m) = \frac{rise}{run} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
In the diagram given:
[tex]slope(m) = \frac{rise}{run} = \frac{3}{3} = 1[/tex]
[tex]slope(m) = \frac{rise}{run} = \frac{4}{2} = 2[/tex]
[tex]slope(m) = \frac{rise}{run} = \frac{2}{10} = \frac{1}{5}[/tex]
Therefore:
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