Linear Functions Review

In a linear function, the slope means the same as ...........

• y-intercept

• rate of change

• initial fee

• base salary

Which of the following is a key word that indicates rate of change or slope?

• started with

• initial

• per

• fee

In a linear function, the y-intercept is the same as ..........

• The rate of change

• starting amount

• slope

• amount per day

Which of the following would NOT indicate y-intercept?

• dollars every hour

• deposit fee

• initial amount

• started with

How do you find rate of change from a table?

How do you find rate of change from a graphed line?

• Look for where the line crosses the y-axis

What has the GREATER rate of change. y = 5x +15 OR the graph

• y = 5x + 15

• 

What has the GREATER rate of change.

• y = 7x + 10

• Someone who starts with $6 and gets $8 each day.

• y = 5x + 20

• Someone who starts with $8 and gets $6 each day.

Alicia and Melissa did jumping jacks.

The table shows the number of jumping jacks that Alicia had done in different amounts of time.

The graph shows the number of jumping jacks that Melissa had done in different amounts of time.

Which choice best describes the difference between the rates at which the girls did jumping jacks?

• Melissa did 6 more jumping jacks per minute than Alicia.

• Alicia did 6 more jumping jacks per minute than Melissa.

• Melissa did 5 more jumping jacks per minute than Alicia.

• Alicia did 5 more jumping jacks per minute than Melissa.

What is the rate of change (slope) to rent a raft from Water's Edge Rafts?