From the graph it can be observed that line passes through points (0,16) and (2,20).
The formula for the slope of line pasing through points (x_1,y_1) and (x_2,y_2) is,
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Determine the slope of line passing through points (0,16) and (2,20).
[tex]\begin{gathered} m=\frac{20-16}{2-0} \\ =\frac{4}{2} \\ =2 \end{gathered}[/tex]
So slope of line is 2.
