Flashcards on Proportional Relationships

Front

constant of proportionality

Back

The constant unit rate in a proportional relationship between two quantities.

Front

proportional relationship

Back

Measures of two quantities are in a proportional relationship if there is a constant unit rate, known as the constant of proportionality k, between pairs of corresponding values, meaning the relationship is described by an equation of the form y = kx.

Front

rate

Back

A quantity that describes a ratio relationship between two quantities.

Front

ratio

Back

An ordered pair of numbers that are not both zero.

Front

ratio relationship

Back

The set of all ratios that are equivalent ratios.

Front

scale

Back

A ratio that compares the distances in a scale drawing to the distances in the original setting.

Front

scale drawing

Back

A copy of a figure in the plane with all distances proportional to the corresponding distances in the original figure.

Front

scale factor

Back

The constant of proportionality in a scale drawing.

Front

unit rate

Back

When a rate is written so that the second of the two quantities is 1 unit, the unit rate is the numerical part of the rate.

Front

unit rate triangle

Back

The triangle with vertices at (0,0), (1,0), and (1,r), where r is the unit rate.