Front

What is a rigid transformation?

Back

A transformation that preserves the shape and size of a figure, including translations, rotations, and reflections.

Front

What does a translation do to an image?

Back

Slides it to a different position without changing its shape or orientation.

Front

What is a reflection in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Front

What is the line of reflection?

Back

The line over which a figure is reflected; it acts as a mirror.

Front

What is a rotation in geometry?

Back

A transformation that turns a figure around a fixed point at a certain angle.

Front

What is the center of rotation?

Back

The fixed point around which a figure is rotated.

Front

What does it mean to reflect over the y-axis?

Back

To flip a figure across the y-axis, changing the sign of the x-coordinates of the points.

Front

What does it mean to reflect over the x-axis?

Back

To flip a figure across the x-axis, changing the sign of the y-coordinates of the points.

Front

What is the image in a transformation?

Back

The resulting figure after a transformation has been applied.

Front

What is the pre-image in a transformation?

Back

The original figure before any transformation is applied.