Unit Rates and Constant of Proportionality

Front

What is a constant of proportionality?

Back

The ratio between two proportional quantities set up as y/x.

Tags

CCSS.7.RP.A.2B

Front

What is a unit rate?

Back

The ratio of two different units, with denominator as 1.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Which equation has a constant of proportionality equal to 9?

Back

y = 63/7x.

Tags

CCSS.7.RP.A.2B

Front

Which equation has a constant of proportionality equal to 1?

Back

y = x.

Tags

CCSS.7.RP.A.2B

Front

How do you know if something is proportional?

Back

Same rate.

Tags

CCSS.7.RP.A.2A

Front

What does it mean if two quantities are proportional?

Back

They have a constant ratio or rate.

Tags

CCSS.7.RP.A.2A

Front

How can you find the unit rate from a ratio?

Back

Divide the numerator by the denominator.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If y = 4x, what is the constant of proportionality?

Back

4.

Tags

CCSS.7.RP.A.2B

Front

What is the unit rate of 60 miles in 3 hours?

Back

20 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If the constant of proportionality is 5, what is the equation?

Back

y = 5x.

Tags

CCSS.7.RP.A.2C