12/9 Proportional Tables Test Practice

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 a non-proportional relationship?

Back

A non-proportional relationship is a relationship between two quantities where the ratio is not constant.

Front

How can you identify a proportional relationship in a table?

Back

If the ratio of y to x is the same for all pairs of values, the relationship is proportional.

Front

What does it mean if a table shows a non-proportional relationship?

Back

It means that the ratios of y to x change as the values increase or decrease.

Front

Give an example of a proportional relationship.

Back

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

Front

Give an example of a non-proportional relationship.

Back

An example is the relationship between the number of items bought and the total cost when there is a fixed fee added.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio in a proportional relationship, often represented as k in the equation y = kx.

Front

How do you find the constant of proportionality from a table?

Back

Divide the y-value by the corresponding x-value for any pair of values in the table.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity.