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.

Tags

CCSS.HSG.CO.B.6

Front

What is the center of rotation?

Back

The fixed point around which a figure rotates.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a pre-image?

Back

The original figure before a transformation is applied.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is an image in geometry?

Back

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

Tags

CCSS.HSG.CO.A.2

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.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

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

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

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

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5