Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Tags

CCSS.7.RP.A.2A

Front

How do you find the constant of proportionality in a proportional relationship?

Back

Divide y by x (k = y/x).

Tags

CCSS.7.RP.A.2B

Front

If 1 meter is approximately 1.09 yards, how many yards are in 3 meters?

Back

3.27 yards.

Tags

CCSS.6.RP.A.3D

Front

If 1 meter is approximately 1.09 yards, how many yards are in 4.5 meters?

Back

4.905 yards.

Tags

CCSS.6.RP.A.3D

Front

What is the formula to calculate the total cost for multiple items in a proportional relationship?

Back

Total Cost = Cost per item × Number of items.

Tags

CCSS.7.RP.A.2C

Front

If Nico earns $7.25 per hour tutoring, how many hours does he need to work to earn $174?

Back

24 hours.

Tags

CCSS.7.EE.B.3

Front

What is the unit rate in a proportional relationship?

Back

The unit rate is the ratio of two measurements in which the second measurement is 1.

Tags

CCSS.7.RP.A.2B

Front

How can you determine if two ratios are proportional?

Back

Two ratios are proportional if they can be simplified to the same fraction.

Tags

CCSS.7.RP.A.2A

Front

What is the relationship between the x and y values in a proportional relationship?

Back

As x increases, y increases at a constant rate.

Tags

CCSS.7.RP.A.2D

Front

If a mini golf course charges $14.50 per round, how much would 3 rounds cost?

Back

$43.50.

Tags

CCSS.7.EE.B.3