Module 1 Test Review - Ratios & Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division. It shows how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF). For example, the ratio 18:12 simplifies to 3:2.

Front

What is a proportion?

Back

Front

How do you write a proportion from a word problem?

Back

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined into a single unit. For example, if 5 songs cost $4.95, the unit rate is $0.99 per song.

Front

How do you find the unit rate from a ratio?

Back

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if two quantities maintain a constant ratio. This means that as one quantity increases, the other quantity increases at the same rate.

Front

How can you tell if a graph represents a proportional relationship?

Back

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

Front

What is the formula for finding the missing value in a proportion?

Back

Front

If a car travels 420 miles in 8 hours, how do you find the speed?

Back