Creating and Interpreting Linear Functions from Context

To join a dancing club, there is a $30 startup fee and a $4 monthly fee. What is the y-intercept?

• 30

• 4

• 26

• 34

To join a dancing club, there is a $30 startup fee and a $4 monthly fee. What is the rate of change?

• 30

• 4

• 26

• 40

To join a dancing club, there is a $30 startup fee and a $4 monthly fee. What is the equation?

• y=4x+30

• y=30x+4

• y=30x

• y=3x+4

The table shows water in a pool over time. What is the rate of change and what does it represent?

• The pool is being drained 2 galloons per minutes

• The pool is being drained 1/2 galloons per minutes

• The pool is being drained 20 galloons per minutes

• The pool is filling 20 galloons per minutes

The graph shows the temperature outside at the beginning of the day and as time goes on. What is the y-intercept and what does it represent?

• The temperature was 8 degree when the day started

• The temperature increased 8 degrees per hour

• The temperature was measured for 8 hours

• The temperature was 4 degree when the day started

LaKeysha started off with $20 in the bank. She plans to deposit $2 every week. Write an equation to represent her money in the bank, y, for x weeks.

• y=2x+20

• y=20x+2

• y=22x

• y=2x+2

What is the initial value in y=3x+10?

• 3

• 10

• 3x

• 10x

Which table has a greater rate of change?

• LEFT

• Right

Which table has a greater initial value?

• LEFT

• RIGHT

Miley is trying to decide which cab to take home. Both cabs charge a service fee and a cost per mile. Which cab charges a higher service fee?

• BLUE

• YELLOW