Unit 8 Proportional Relationships Review

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

How can you determine if a table of values represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of corresponding values are equivalent.

Front

What is the ratio of quarters to dimes if there are 8 quarters and 10 dimes?

Back

The ratio of quarters to dimes is 4:5.

Front

Write an equation that represents a job paying $56 for 8 hours of work.

Back

y = 7x, where y is the total pay and x is the number of hours worked.

Front

If Antonia can type 408 words in 4 minutes, how many words can she type per minute?

Back

Antonia can type 102 words per minute.

Front

What does it mean if a relationship is not proportional?

Back

A relationship is not proportional if the ratio between the two quantities changes.

Front

How do you find the unit rate from a proportional relationship?

Back

To find the unit rate, divide one quantity by the other to determine how much of one quantity corresponds to one unit of the other.

Front

What is the unit rate if a car travels 300 miles in 5 hours?

Back

The unit rate is 60 miles per hour.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

What is a 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.