Transformational Geometry Vocabulary Part 1

Front

The vertical axis on a coordinate plane.

Back

Y-axis

Front

The horizontal axis on a coordinate plane

Back

X-axis

Front

A movement (slide) of a figure along a straight line.

Back

Translation

Front

A change in the size or position of a figure.

Back

Transformation

Front

A transformation in which a figure is turned around a point.

Back

Rotation

Front

A transformation of a figure that flips the figure across a line.

Back

Reflection

Front

The original figure in a transformation

Back

Preimage

Front

A line that a figure is flipped across to create a mirror image of the original figure.

Back

Line of Reflection

Front

A figure resulting from a transformation.

Back

Image

Front

The point about which a figure is rotated.

Back

Center of Rotation