To answer this question we will use the following two points formula for the equation of a line:
[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1).[/tex]
From the given graph we get that the line passes through (0,0) and (5,2), then its equation is:
[tex]y-0=\frac{2-0}{5-0}(x-0).[/tex]
Simplifying the above result we get:
[tex]y=\frac{2}{5}x.[/tex]
Answer: Option D.
