Unit 3: Transformations Vocabulary

Front

A function that moves or changes a figure in some way to produce a new figure

Back

Transformation

Front

A figure that results from the transformation of a geometric figure

Back

Image

Front

The original figure before a transformation

Back

Preimage

Front

A transformation that moves every point of a figure the same distance and same direction

Back

Translation

Front

A transformation that preserves length and angle measure

Back

Rigid Motion

Front

The combination of two or more transformations to form a single transformation

Back

Composition of Transformations

Front

A transformation that uses a line like a mirror to reflect a figure

Back

Reflection

Front

A line that acts as a mirror for a reflection

Back

Line of Reflection

Front

A transformation involving a translation followed by a reflection

Back

Glide Reflection

Front

A line of reflection that maps a figure onto itself

Back

Line of Symmetry