Proportional Relationships and Rates of Change Quiz

Which of the following represents a proportional relationship?

• A car travels 100 miles in 2 hours and 150 miles in 3 hours.

• A balloon loses 2 liters of helium every hour and has 10 liters left after 5 hours.

• A phone battery drains 10% every hour and is at 40% after 4 hours.

• A tree grows 3 feet in one year and 5 feet in two years.

Tags

CCSS.7.RP.A.2A

What is the constant of proportionality if a recipe calls for 2 cups of flour for every 3 cookies?

• 6

Tags

CCSS.7.RP.A.2B

If two quantities are proportional, which of the following statements must be true?

• Their rates of change will be different.

• Their rates of change will be the same.

• One quantity will always be double the other.

• They will form a nonlinear graph when plotted.

Tags

CCSS.7.RP.A.2D

• A straight line passing through the origin.

• A straight line not passing through the origin.

• A parabola opening upwards.

• A horizontal line.

Tags

CCSS.7.RP.A.2D

• 5

• 0

• 1

Tags

CCSS.7.RP.A.2B

If you buy 3 apples for $1.50, how much would 10 apples cost at the same rate?

• $3.00

• $4.00

• $5.00

• $6.00

Tags

CCSS.6.RP.A.3B

Which equation represents a proportional relationship?

Tags

CCSS.7.RP.A.2C

Tags

CCSS.7.RP.A.2B

If a car travels 60 miles in 1 hour, how far will it travel in 4 hours at the same speed?

• 120 miles

• 180 miles

• 240 miles

• 300 miles

Tags

CCSS.6.RP.A.3B

Which of the following is NOT a characteristic of proportional relationships?

• They have a constant rate of change.

• The graph of a proportional relationship is a curved line.

Tags

CCSS.7.RP.A.2D