Rotation Rules

Front

What is the result of a transformation called?

Back

Image

Front

What is the rule for rotating a point about the origin by 90 degrees counterclockwise?

Back

(-y, x) - Flip the coordinates and change the sign of the y-coordinate.

Front

What is the rule for a 270 degrees counterclockwise rotation about the origin?

Back

(y, -x) - Flip the coordinates.

Front

How many lines of symmetry does a butterfly have?

Back

1

Front

What is the rule for rotating a point about the origin clockwise by 270 degrees?

Back

(-y, x) - Flip the coordinates and change the sign of the y-coordinate.

Front

What is a preimage in transformations?

Back

The original figure before a transformation.

Front

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

Back

(y, -x) - Flip the coordinates and change the sign of the x-coordinate.

Front

What is the effect of a 180 degrees rotation on the coordinates (x, y)?

Back

(-x, -y) - Change both signs.

Front

Define rotation in geometry.

Back

A transformation that turns a figure around a fixed point.

Front

What is the center of rotation?

Back

The fixed point around which a figure is rotated.