Graphing 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

What is unit cost?

Back

Unit cost is the cost for one unit of a product, often expressed in terms of price per pound, per gallon, etc.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units. For example, if 15 gallons are used in 3 minutes, the unit rate is 15 gallons ÷ 3 minutes = 5 gallons per minute.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does a graph of a proportional relationship look like?

Back

A graph of a proportional relationship is a straight line that passes through the origin (0,0).

Tags

CCSS.7.RP.A.2D

Front

If a sloth travels 6 feet in 1 minute, how far will it travel in 3 minutes?

Back

18 feet (6 feet/minute × 3 minutes = 18 feet).

Tags

CCSS.6.RP.A.3B

Front

What is the formula for finding the total cost based on unit cost?

Back

Total Cost = Unit Cost × Quantity.

Tags

CCSS.7.RP.A.2C

Front

If 1 pound of Potato Salad costs $3.50, how much does 4 pounds cost?

Back

$14.00 (4 pounds × $3.50/pound = $14.00).

Tags

CCSS.6.NS.B.3

Front

What is the relationship between time and gallons used if 5 gallons are used in 1 minute?

Back

The relationship is linear; for every minute, 5 gallons are used.

Tags

CCSS.5.OA.B.3

Front

How do you convert weight from Earth to the Moon?

Back

To convert weight from Earth to the Moon, multiply the weight on Earth by 1/6. For example, 12 pounds on Earth is 12 × 1/6 = 2 pounds on the Moon.

Tags

CCSS.6.RP.A.3D

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio that relates two proportional quantities, often represented as 'k' in the equation y = kx.

Tags

CCSS.7.RP.A.2B