Rotations on the Coordinate Plane (8th)

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle in a specific direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the center of rotation?

Back

The center of rotation is the fixed point around which a figure is rotated.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the angle of rotation?

Back

The angle of rotation is the measure of the degree through which a figure is rotated around the center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a 90° clockwise rotation do to a point (x, y)?

Back

A 90° clockwise rotation transforms the point (x, y) to (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does a 90° counterclockwise rotation do to a point (x, y)?

Back

A 90° counterclockwise rotation transforms the point (x, y) to (-y, x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of rotating a point (a, b) by 180°?

Back

Rotating a point (a, b) by 180° results in the point (-a, -b).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you rotate a point 270° counterclockwise?

Back

To rotate a point (x, y) 270° counterclockwise, you can first rotate it 90° clockwise, resulting in (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the image of the point (3, 4) after a 90° clockwise rotation?

Back

The image of the point (3, 4) after a 90° clockwise rotation is (4, -3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the image of the point (-2, -5) after a 180° rotation?

Back

The image of the point (-2, -5) after a 180° rotation is (2, 5).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is another term for rotation?

Back

Another term for rotation is 'turn'.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5