Answer:
2.5 inches per year
Step-by-step explanation:
the slope m of the line gives the measure of the rate of change.
using the slope formula to find m
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (2, 5) and (x₂, y₂ ) = (4, 10) ← corresponding points for 2/ 4 years
m = [tex]\frac{10-5}{4-2}[/tex] = [tex]\frac{5}{2}[/tex] = 2.5
rate of change is then 2.5 inches per year
