7th Grade Module 1 Vocabulary

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

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 triangle

Back

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