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

What does the point (0,0) represent in a proportional relationship?

Back

The point (0,0) represents the origin, indicating that when one quantity is zero, the other quantity is also zero.

Front

How can you identify a proportional relationship from a graph?

Back

A proportional relationship can be identified by a straight line that passes through the origin (0,0).

Front

What is the constant of proportionality?

Back

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

Front

If a recipe calls for 2 cups of sugar for every 3 cups of flour, what is the constant of proportionality?

Back

The constant of proportionality is 2/3.

Front

How do you find the missing value in a proportional relationship?

Back

You can find the missing value by setting up a proportion and cross-multiplying.

Front

What is the formula for finding a proportional relationship?

Back

The formula is y = kx, where k is the constant of proportionality.

Front

If a car travels 60 miles in 1 hour, how far will it travel in 3 hours?

Back

180 miles.

Front

What does a non-proportional relationship look like on a graph?

Back

A non-proportional relationship does not pass through the origin and is not a straight line.

Front

If Jasmin uses 1.5 cups of water, how much flour does she need if the ratio is 1/4 cup water to 1/2 cup flour?

Back

3 cups of flour.