Proportional Relationship Vocabulary Test

Front

What is the term for a part of a whole expressed in hundredths?

Back

Percent

Front

What must the denominator of a unit rate be?

Back

of 1

Front

How do you calculate the constant of proportionality?

Back

y/x

Front

What do you call a ratio that compares two quantities measured in different units?

Back

rate

Front

What is the simplest form of the ratio 20 hours to 4 days?

Back

5:24

Front

What is a proportional relationship?

Back

A relationship where two quantities increase or decrease at the same rate.

Front

What is the formula for finding a unit rate?

Back

Divide the numerator by the denominator.

Front

What is a scale factor?

Back

A number that scales, or multiplies, a quantity.

Front

What is the difference between a ratio and a rate?

Back

A ratio compares two quantities, while a rate compares two quantities with different units.

Front

What does it mean if two quantities are in direct proportion?

Back

As one quantity increases, the other quantity increases at a constant rate.