Review for 2-3 to 2-5 (Illustrative Math)

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

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Back

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CCSS.7.RP.A.2C

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Back

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value of the ratio between two proportional quantities.

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CCSS.7.RP.A.2B

Front

Write an equation that gives the amount of rain (y) that has fallen after (x) hours at a rate of 0.25 inches per hour.

Back

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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Back

They are reciprocals.

Front

How do you find the constant of proportionality from a table of values?

Back

Divide the dependent variable by the independent variable for any pair of corresponding values.

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CCSS.7.RP.A.2B

Front

What does it mean for two numbers to be reciprocals?

Back

Two numbers are reciprocals if their product is 1.

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Back

4.

Tags

CCSS.7.RP.A.2B

Front

What is the formula for finding the reciprocal of a fraction?

Back

To find the reciprocal of a fraction, swap the numerator and the denominator.