Topic 2 Test Math 2): Proportional Relationships

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities. It remains constant as the values change.

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together. It is often expressed as a quantity per one unit.

Front

How do you find the unit rate?

Back

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

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if two quantities maintain a constant ratio or rate.

Front

If a car travels 300 miles in 5 hours, what is the unit rate?

Back

60 miles/hour.

Front

What is an example of a proportional relationship?

Back

If you buy 3 apples for $6, the cost per apple is constant at $2, showing a proportional relationship.

Front

How can you determine if a table of values is proportional?

Back

A table is proportional if the ratios of corresponding values are equal.

Front

What is the formula for finding the constant of proportionality?

Back

The constant of proportionality can be found using the formula k = y/x, where y is the dependent variable and x is the independent variable.

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio, while non-proportional relationships do not.

Front

If a table shows values (2, 4), (3, 6), (4, 8), is it proportional?

Back

Yes, it is proportional because the ratio of y to x is constant (2:1).