Proportional Relationship 7RP2

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 determine if a relationship is proportional?

Back

You can determine if a relationship is proportional by checking if the ratios of corresponding values are equal.

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 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.

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 calculate the unit rate?

Back

To calculate the unit rate, divide the numerator by the denominator to find the amount per one unit.

Front

What does it mean if a graph represents a proportional relationship?

Back

If a graph represents a proportional relationship, it will show a straight line that passes through the origin (0,0).

Front

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

Back

An example of a proportional relationship is the relationship between distance and time when traveling at a constant speed.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, is this a proportional relationship?

Back

Yes, this is a proportional relationship because the ratio of flour to sugar remains constant.

Front

What is the unit rate if a car travels 120 miles in 2 hours?

Back

The unit rate is 60 miles per hour.