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Slope equation
CONCEPTS
Slope Equation
• m = rise / run = (y₂ – y₁) / (x₂ – x₁) (m = slope, points are (x₁, y₁) & (x₂, y₂))
PRACTICE PROBLEMS
Question 1 What is an equation for the rate of change for the speed between 2 and 4 hours?
-- Answer -- 5
t = 2 hrs, v2 = 15 & t = 4 hrs, v4 = 25
v4 - v2 / (4 - 2) = (25 - 15) / (4 - 2) = 10/2 = 5
ACT PRACTICE PROBLEMS
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