Geometry Rotations About the Origin

Name the transformation.

• Reflection (flip)

• Translation (slide)

• Rotation (turn)

• It didn't transform

Which rule describes rotating 270° clockwise (90° counterclockwise)?

• ( x, y ) → ( y, -x )

• ( x, y ) → ( -x, -y )

• ( x, y) → ( x, y )

• ( x, y ) → ( -y, x )

Translations, reflections and rotations are all known as ________________________.

• Geometry

• Transformations

• Congruent

• Similar

Describe the rotation.

• Rotate 90 degrees clockwise about the origin

• Rotate 90 degrees counter clockwise about the origin

• Rotate 180 degrees about the origin

• Rotate 180 degrees

Which figure is the IMAGE?

• ABC

• A'B'C'

• Not enough information

What is this picture an example of?

• Reflection

• Translation

• Rotation

• Dilation

Translations, rotations, and reflections are three different types of what?

• Transformations

• Geometry

• Vectors

• Shapes

Describe the transformation shown in the graph.

• Reflect over x-axis

• Reflect over y-axis

• Rotate 270 degrees CCW around the origin

• Rotate 90 degress CCW around the origin

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)

• (-3, -5)

• (-5, 3)

• (-3, 3)

What is the angle of rotation for this counterclockwise rotation about the origin?

• 90°

• 180°

• 270°

• 360°