Understanding Ratios and Proportions VOCABULARY

Front

What is the term for a relationship where two quantities do not increase or decrease at the same rate?

Back

Nonproportional

Front

What is the term for the constant value that relates two proportional quantities?

Back

Constant of proportionality

Front

What is a fraction where the numerator, the denominator, or both contain a fraction?

Back

Complex fraction

Front

What is the term for ratios that express the same relationship between quantities?

Back

Equivalent ratios

Front

What term describes a relationship where two quantities increase or decrease at the same rate?

Back

Proportional

Front

What is a ratio?

Back

A comparison of two quantities by division.

Front

What is a proportion?

Back

An equation that states that two ratios are equal.

Front

What is a unit rate?

Back

A rate in which the second quantity is one unit.

Front

What is the constant of proportionality in the equation y = kx?

Back

k, which represents the ratio of y to x.

Front

How do you find the unit rate from a ratio of 60 miles in 3 hours?

Back

Divide 60 by 3 to get 20 miles per hour.