Initial Value and Rate of Change

Identify the initial value from the following equation;

y = -3x + 3

• 0

• 3

• -3

• 1

Identify the rate of change from the following equation;

y = 1/2x + 6

• 1/2

• 2

• 6

• -6

Jimmy is filling a pool with water.  The pool has 78 gallons already inside.  The hose is filling it at a rate of 3 gallons per minute.  What is the y-intercept for this problem?

• 78/3

• 78

• 3

• 3/78

Lonnie plans to join the gym.  He must pay a $35 membership fee.  He will then pay $5 each month.  What is the slope?

• 7

• 35

• 5

• 1/7

During the summer, Briana runs an ice cream shop. Her biggest seller is waffle ice cream cones. She charges $1.85 for a waffle cone, and $0.60 for each scoop of ice cream. What is the rate of change?

• $2.45

• $0.60

• $60

• $1.85

Elliot wants to sign up for a gym membership. The gym require a $35 fee to sign up, then $12 every month. Write an equation to find the amount Elliot will pay for his gym membership "y" after "x" amount of months.

• y = 35x + 12

• y = 12x + 35

• y = 12x - 35

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

Which rate of change represents the following graph?

• 5 figurines on 1 shelf

• 0.5 figurines on 1 shelf

• 10 figurines on 1 shelf

• 40 figurines on 1 shelf

Find the slope

• 4/5

• 5/4

• -5/4

• -4/5

Find the slope

• 5/2

• -5/2

• 2/5

• -2/5