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

Define constant of proportionality.

Back

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

Front

What does unit rate mean?

Back

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

Front

If 8 hours of work earns $500, what is the unit rate?

Back

The unit rate is $62.50 per hour.

Front

How do you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it passes through the origin (0,0) and forms a straight line.

Front

Solve the proportion: 3/4 = x/16. What is x?

Back

x = 12.

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

If the constant of proportionality is $9, how much is earned for selling 10 items?

Back

$90.

Front

What is the relationship between proportional relationships and ratios?

Back

Proportional relationships are based on equivalent ratios.

Front

If a table shows that 2 phones earn $86, what is the constant of proportionality?

Back

The constant of proportionality is $43 per phone.