Rigid Motions Review

Front

What is a rigid motion?

Back

A transformation that preserves distance and angle measures, meaning the shape and size of the figure remain unchanged.

Front

What is the center of rotation?

Back

The fixed point around which a figure rotates.

Front

What happens to the coordinates of a point (x, y) when it is rotated 90° clockwise?

Back

The new coordinates will be (y, -x).

Front

What happens to the coordinates of a point (x, y) when it is rotated 90° counterclockwise?

Back

The new coordinates will be (-y, x).

Front

What is a pre-image?

Back

The original figure before a transformation is applied.

Front

What is an image in geometry?

Back

The resulting figure after a transformation has been applied to the pre-image.

Front

How do you translate a figure?

Back

To translate a figure, you move it a certain distance in a specified direction without changing its shape or orientation.

Front

What is the translation rule for moving a point (x, y) 5 units down and 4 units to the right?

Back

The new coordinates will be (x + 4, y - 5).

Front

What is the effect of reflecting a point across the x-axis?

Back

The new coordinates will be (x, -y).

Front

What is the effect of reflecting a point across the y-axis?

Back

The new coordinates will be (-x, y).