Answer:
Step-by-step explanation:
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
From the graph we have the points (2, 4) and (4, 8).
Substitute:
[tex]m=\dfrac{8-4}{4-2}=\dfrac{4}{2}=2[/tex]