RATE OF CHANGE Zero Positive can be Undefined Negative RATE OF CHANGE change in y change in x m= change in y change in x What is the rate of change? What is therate of change? What is the rate of change? What is the rate of change? -3 3 0 Undefined 2 -2 0 Undefined What is the rate of change? 2/3 -2/3 3/2 -3/2 What is the rate of change? m= RATE OF CHANGE always simplify your fractions change in y change in x = 8 2 =4 What is the rate of change? What is the rate of change? What is the rate of change? Use integer-points (not decimal points) RATE OF CHANGE good bad What is a good point to use? use this use this use this use this this this this What is a good point to use? this (0,0) (0,2) (2,0) What's a point? What is a good point to use? What's the rate of change? 3 4 5 6 What's the rate of change? -5/7 -1 -3/4 -2/3 What's the rate of change? RATE OF CHANGE 100 100 150 50 Watch your scaling! 0 1 2 2 3 4 $20 $10 $15 $5 1 2 3 4 5 days What is the rate of change? 1/2 5 5/2 2/5 miles ran What is the rate of change? 2 1 3 10 2 5 10 15 20 25 30 minutes 1/2 1/10 What is the rate of change? 400 200 800 600 10 20 30 40 240 180 120 60 What is the rate of change? 3 6 9 12 15 18 21 change in x change in y What is the formula for rate of change? change in y change in x |