Algebra-2

To determine the rate of change, use the formula for the rate of change:



where (x₁,y₁) and (x₂,y₂) are two points. We will use the points (150,100) and (160,120):

Calculate the change in expenses:
ΔExpenses = 120 − 100 = 20 dollars

Calculate the change in height:
ΔHeight = 160 − 150 = 10 cm

Calculate the rate of change: