Question

What is the rate of change between the points 6,45 and 9,67.5

Answer 1

Answer:

7.5

Step-by-step explanation:

the slope m is a measure of the rate of change

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (6, 45 ) and (x₂, y₂ ) = (9, 67.5 )

m = $\frac{67.5-45}{9-6}$ = $\frac{22.5}{3}$ = 7.5 ← rate of change