Unit 5: Review Ratio and Proportionality 2024

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

Front

What does it mean for a table to be proportional?

Back

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

Front

How can you determine if a graph is proportional?

Back

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

Front

What is the definition of proportionality?

Back

Proportionality refers to the relationship between two quantities where their ratio remains constant.

Front

If the ratio of fish to sharks is 4:1, how many fish are there if there are 2 sharks?

Back

There are 8 fish.

Front

What is the formula to find a missing value in a proportion?

Back

The formula is a/b = c/d, where you can cross-multiply to find the missing value.

Front

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

Back

A relationship is non-proportional if the ratios of the quantities are not constant.

Front

True or False: The point (4,2) in a ratio context means mixing 2 quarts of one substance with 4 quarts of another.

Back

True.

Front

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

Back

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

Front

How do you simplify the ratio 10:5?

Back

The simplified ratio is 2:1.