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 is constant.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio in a proportional relationship, often represented as 'k'.

Front

How do you determine if a table represents a proportional relationship?

Back

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

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

How do you find the unit rate from a given quantity?

Back

To find the unit rate, divide the total quantity by the number of units.

Front

What does it mean if a graph is non-proportional?

Back

A non-proportional graph does not show a constant ratio between the x and y values, meaning the line does not pass through the origin.

Front

If 72 ounces serve 12 people, how many ounces does each person get?

Back

6 ounces per serving.

Front

What is the unit rate for 80 miles in 2 hours?

Back

40 miles in 1 hour.

Front

If a recipe calls for 50 grams of sugar for 200 grams of flour, what is the constant of proportionality?

Back

0.25 (or 1/4).

Front

How can you tell if two ratios are equivalent?

Back

Two ratios are equivalent if they simplify to the same fraction.