Linear Functions and Rates of Change

Definition: the y-coordinate where the graph crosses the y-axis

• y-intercept
• y-axis
• slope
• zero

Using the graph, find the rate of change

• 4/3
• 3/4
• -4/3
• -3/4

Find the rate of change

• 0
• undefined
• -3
• 6

Find the rate of change from the graph

• 0
• undefined
• 3
• -3

Find the rate of change

• 1
• 2
• 11
• Not a constant slope/Non-Linear

Find the rate of change

• 3
• -3
• 20
• Not a constant slope/Non-Linear

Find the rate of change

• -1/3
• -3
• 1/3
• 3

Which company shows a greater rate of change?

• Water's Edge Rafts
• Ryan's Rafts
• They have the same rate of change.
• Cannot be determined

When graphing the rate of change, we....

• Run then Rise
• Rise then Run
• Rise then Rise
• Run far away.

Which of the following are ways to find the rate of change?

• change in y over change in x
• rise over run
• subtract y coordinates over subtract x coordinates
• all of the above