Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, defined as the ratio of one quantity to another.

Tags

CCSS.7.RP.A.2B

Front

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

Back

To find the constant of proportionality from a table, divide the value of one quantity by the corresponding value of the other quantity for any pair of values.

Tags

CCSS.7.RP.A.2B

Front

If y = kx, what does k represent?

Back

In the equation y = kx, k represents the constant of proportionality, indicating how much y changes for a unit change in x.

Tags

CCSS.7.RP.A.2B

Front

What is the constant of proportionality if 10 apples cost $20?

Back

The constant of proportionality is $2 per apple.

Tags

CCSS.7.RP.A.2B

Front

If a recipe requires 3 cups of flour for 12 cookies, what is the constant of proportionality in cups of flour per cookie?

Back

The constant of proportionality is 0.25 cups of flour per cookie.

Tags

CCSS.7.RP.A.2B

Front

What is the constant of proportionality for the equation y = 4x?

Back

The constant of proportionality is 4.

Tags

CCSS.7.RP.A.2B

Front

If a car travels 150 miles in 3 hours, what is the constant of proportionality in miles per hour?

Back

The constant of proportionality is 50 miles per hour.

Tags

CCSS.7.RP.A.2B

Front

How can you tell if two quantities are proportional?

Back

Two quantities are proportional if their ratios are constant.

Tags

CCSS.7.RP.A.2A

Front

What is the constant of proportionality if 5 kg of apples cost $15?

Back

The constant of proportionality is $3 per kg.

Tags

CCSS.7.RP.A.2B

Front

If a person earns $12 per hour, what is the constant of proportionality in terms of earnings per hour?

Back

The constant of proportionality is $12 per hour.

Tags

CCSS.7.RP.A.2B