Constant of Proportionality

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

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

Back

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

Tags

CCSS.7.RP.A.2B

Front

If y = 3x, what is the constant of proportionality?

Back

The constant of proportionality is 3.

Tags

CCSS.7.RP.A.2B

Front

What does a proportional relationship look like on a graph?

Back

A proportional relationship on a graph is represented by a straight line that passes through the origin (0,0).

Tags

CCSS.7.RP.A.2D

Front

If a table shows values (2, 6), (4, 12), and (6, 18), what is the constant of proportionality?

Back

The constant of proportionality is 3, since 6/2 = 12/4 = 18/6 = 3.

Tags

CCSS.7.RP.A.2B

Front

What is the formula to calculate the constant of proportionality?

Back

The formula is k = y/x, where k is the constant of proportionality, y is the dependent variable, and x is the independent variable.

Tags

CCSS.7.RP.A.2B

Front

In the equation y = 45x, what does 45 represent?

Back

In the equation y = 45x, 45 represents the constant of proportionality.

Tags

CCSS.7.RP.A.2B

Front

What is an example of a non-proportional relationship?

Back

An example of a non-proportional relationship is y = x + 2, as it does not pass through the origin.

Tags

CCSS.7.RP.A.2D

Front

If Craig earns $9.25 per hour, how much will he earn for 10 hours?

Back

Craig will earn $92.50 for 10 hours.

Tags

CCSS.6.NS.B.3

Front

What is the relationship between the constant of proportionality and unit rate?

Back

The constant of proportionality is the same as the unit rate, which describes how much of one quantity corresponds to one unit of another quantity.

Tags

CCSS.7.RP.A.2B