Rate of Change and Unit Rate

If 5 workers can complete a task in 8 hours, what is the unit rate of work done per hour?

• 0.4 tasks per hour

• 10 tasks per hour

• 0.625 tasks per hour

• 1 task per hour

Solve the following problem using proportional relationships: If 4 gallons of paint can cover 120 square feet, how many gallons of paint are needed to cover 300 square feet?

• 2 gallons

• 8 gallons

• 15 gallons

• 10 gallons

A car travels 240 miles in 4 hours. What is the rate of change in miles per hour?

• 120 miles per hour

• 80 miles per hour

• 40 miles per hour

• 60 miles per hour

From the table, what is the rate of change we see happening? (Select all that apply)

• Increase of $75 per adult

• Increase of $375 per 5 adults

• Increase of $150 per 3 adults

• Increase of $2 per 150 adults

What is the rate of change for Function B?

• 1/2

• 2

• -1/2

• -2

Who has the greater rate of change?

• They have the same rate of change.

What is the rate of change for the following function?

• 1 gallon of blue per gallon of yellow

• 5 gallons of blue per gallons of yellow

Tags

TEKS.MATH.8.4A

TEKS.MATH.8.4B

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Which company shows a greater rate of change?

• Water's Edge Rafts

• Ryan's Rafts

What is the rate of change for Function A?

• 6

• 2

• 1/3

• 3