Unit 4 Review - Proportional vs. Non-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 is constant.

Tags

CCSS.7.RP.A.2A

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship between two quantities where the ratio is not constant.

Tags

CCSS.7.RP.A.2D

Front

How can you identify a proportional relationship from a graph?

Back

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

Tags

CCSS.7.RP.A.2D

Front

How can you identify a non-proportional relationship from a graph?

Back

A graph represents a non-proportional relationship if it is a straight line that does not pass through the origin or if it is not a straight line.

Tags

CCSS.7.RP.A.2D

Front

What is the constant of proportionality?

Back

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

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CCSS.7.RP.A.2B

Front

If y = 16x, what is the constant of proportionality?

Back

The constant of proportionality is 16.

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CCSS.7.RP.A.2B

Front

Write an equation for a proportional relationship where the constant of proportionality is 9.75.

Back

y = 9.75x.

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CCSS.7.RP.A.2C

Front

Write an equation for a proportional relationship where the constant of proportionality is 19.25.

Back

y = 19.25x.

Tags

CCSS.7.RP.A.2C

Front

What does it mean if a graph is non-proportional?

Back

It means that the relationship between the two quantities does not maintain a constant ratio.

Tags

CCSS.7.RP.A.2D

Front

If a table shows values (2, 4), (4, 8), (6, 12), is this proportional?

Back

Yes, because the ratio of y to x is constant (2).

Tags

CCSS.7.RP.A.2A