Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

How can you tell if a table represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of the corresponding values are equal.

Front

If Perry earned $96 for 8 driveways, how much does he earn per driveway?

Back

$12 per driveway.

Front

If Perry shovels 6 driveways, how much will he earn?

Back

$72.

Front

What does the point (2, 94) represent in a savings context?

Back

After 2 weeks, they save $94.

Front

In the equation y = 14x, what does '14' represent?

Back

The constant of proportionality.

Front

What is the constant of proportionality in a proportional relationship?

Back

The constant of proportionality is the factor by which one quantity is multiplied to obtain the other quantity.

Front

If a table shows the values (1, 3), (2, 6), (3, 9), does it represent a proportional relationship?

Back

Yes, because the ratios (1:3, 2:6, 3:9) are all equal to 1:3.

Front

What is the formula for finding the constant of proportionality?

Back

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

Front

If y = 5x, what is the value of y when x = 4?

Back

y = 20.