Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is a constant ratio between two quantities that are proportional to each other.

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if the ratio between the two quantities remains constant.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

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

Back

The constant of proportionality is 3.

Front

What does it mean if a table is not proportional?

Back

It means that the ratios of the quantities do not remain constant.

Front

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

Back

You can find it by dividing the y-value by the corresponding x-value for any pair of values.

Front

True or False: The constant of proportionality is the same as the slope of a line through the origin.

Back

True.

Front

What is the formula for finding the constant of proportionality?

Back

k = y/x, where k is the constant of proportionality.

Front

If a table shows (2, 6), (4, 12), and (6, 18), is it proportional?

Back

Yes, the constant of proportionality is 3.

Front

What is an example of a proportional relationship in real life?

Back

The relationship between distance and time when traveling at a constant speed.