Week 18~Math Bridges (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 the equation of a proportional relationship?

Back

The equation of a proportional relationship can be expressed as y = kx, where k is the constant of proportionality.

Tags

CCSS.7.RP.A.2C

Front

If an app developer earns $230 for every 100 apps downloaded, what is the equation representing the relationship between apps (x) and earnings (y)?

Back

y = 2.30x

Tags

CCSS.7.RP.A.2C

Front

Which of the following represents a proportional relationship: A cheeseburger costs $7.95 plus $1.00 for each topping, or a pool fills at 90 gallons per hour?

Back

A pool fills at a rate of 90 gallons per hour.

Tags

CCSS.7.RP.A.2A

Front

If the x-value increases by 20 and the y-value increases by 10, what is the slope of the relationship?

Back

The slope is 0.5.

Tags

CCSS.8.EE.B.5

Front

Back

Tags

CCSS.7.RP.A.1

Front

Back

Tags

CCSS.6.RP.A.3B

Front

What is the constant of proportionality in the equation y = 2.30x?

Back

The constant of proportionality is 2.30.

Tags

CCSS.7.RP.A.2B

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if it can be represented by a straight line through the origin on a graph.

Tags

CCSS.7.RP.A.2D

Front

What does the slope of a line represent in a proportional relationship?

Back

The slope represents the rate of change between the two quantities.

Tags

CCSS.7.RP.A.2D