Question

Determine the rate of change of the graph

Answer 1

4/5

Explanation:

Answer 2

0.6

Explanation:

The rate of change is the slope m of the straight line

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 20) and (x₂, y₂ ) = (20, 32) ← 2 points on the line

m =
`(32-20)/(20-0)` =
`(12)/(20)` = 0.6