Answer:
[tex]\dfrac{1}{10}=0.1[/tex]
Step-by-step explanation:
From inspection of the graph:
- when x = 10, y = 3
- when x = 20, y = 4
Therefore:
let (x₁, y₁) = (10, 3)
let (x₂, y₂) = (20, 4)
Using the rate of change formula:
[tex]\textsf{rate of change}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{4-3}{20-10}=\dfrac{1}{10}[/tex]
