Rate of Change and Constant Rate of Change

Calculate the rate of change.

• 1

• 2

• 11

• Not a constant slope/Non-Linear

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

• 400 miles

• 325 miles

• 575 miles

• 650 miles

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

• x = 3y

Write an equation for this relationship.

• y=4x

• y=1/8x

• y=1/4x

• y=8x

What is the constant of proportionality in this table?

• 3

• 6

• 1.5

• 0.3

At what rate did the rain fall?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

Is this graph proportional?

• Yes

• No