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 do you find the constant of proportionality in a proportional relationship?

Back

Divide the dependent variable (y) by the independent variable (x).

Front

If 1 meter is approximately 1.09 yards, how many yards are in 3 meters?

Back

3.27 yards.

Front

What is the formula to calculate the total cost in a proportional relationship?

Back

Total Cost = Rate × Quantity.

Front

If Nico earns $7.25 per hour tutoring, how many hours does he need to work to earn $174?

Back

24 hours.

Front

What is the unit rate in a proportional relationship?

Back

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

Front

If Putt Putt World charges $14.50 per round of mini golf, how much would 3 rounds cost?

Back

$43.50.

Front

If a relationship is not proportional, what does that mean?

Back

It means the ratio between the two quantities is not constant.

Front

How can you determine if a table of values represents a proportional relationship?

Back

Check if the ratios of corresponding values are equal.

Front

What is the relationship between direct variation and proportional relationships?

Back

Direct variation is a specific type of proportional relationship where one variable is a constant multiple of another.