Answer:
7.5
Explanation:
the slope m is a measure of the rate of change
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (6, 45 ) and (x₂, y₂ ) = (9, 67.5 )
m = = = 7.5 ← rate of change
1.6m questions
2.0m answers