Topic 3 Test: Proportional Relationships (2024)

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 is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit. For example, if you earn $500 for 8 hours of work, the unit rate is $500/8 hours = $62.50 per hour.

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 equivalent.

Front

What does the equation y = kx represent in proportional relationships?

Back

In the equation y = kx, 'k' is the constant of proportionality, which represents the unit rate.

Front

If y = 18.50x, what is the unit rate?

Back

The unit rate is $18.50 per unit.

Front

What is the significance of the constant of proportionality?

Back

The constant of proportionality indicates how much one quantity changes in relation to another quantity.

Front

How can you identify a proportional graph?

Back

A proportional graph is a straight line that passes through the origin (0,0).

Front

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

Back

A non-proportional relationship does not have a constant ratio between the two quantities, meaning the graph does not form a straight line through the origin.

Front

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

Back

An example of a proportional relationship is the cost of apples if they are sold at a constant price per pound.

Front

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

Back

To find the missing value in a proportional table, set up a proportion using the known values and solve for the unknown.