Math 7: Constant of Proportionality From Tables

Front

What is the constant of proportionality?

Back

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

Tags

CCSS.7.RP.A.2B

Front

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

Back

4

Tags

CCSS.7.RP.A.2B

Front

If y = (1/4)x, what is the constant of proportionality?

Back

1/4

Tags

CCSS.7.RP.A.2B

Front

If y = (1/5)x, what is the constant of proportionality?

Back

1/5

Tags

CCSS.7.RP.A.2B

Front

If y = 4x, what does this tell us about the relationship between x and y?

Back

As x increases, y increases at a rate of 4 times x.

Tags

CCSS.7.RP.A.2B

Front

What is the formula to find the constant of proportionality from a table of values?

Back

k = y/x, where y is the output and x is the input.

Tags

CCSS.7.RP.A.2B

Front

How do you determine 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 y = 30 when x = 15?

Back

2 (since 30/15 = 2).

Tags

CCSS.7.RP.A.2B

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the constant of proportionality for flour to sugar?

Back

2/3.

Tags

CCSS.7.RP.A.2B

Front

How many teaspoons are equivalent to 6 milliliters?

Back

1.2 teaspoons.

Tags

CCSS.4.MD.A.1