Geometric Rotations Flashcard Part 2

Front

A rotation turns a figure around a fixed point called the _____ of rotation.

Back

center

Front

What is another word for rotation?

Back

Turn

Front

Which rule describes a 180° clockwise rotation about the origin?

Back

( x, y ) → ( -x, -y )

Front

Ivy will rotate ABC using the rule (x, y) → (-x, -y). The location of C' will be:

Back

(5, 2)

Front

Rotate the point (-3,-4) around the origin 180 degrees. State the image of the point.

Back

(3, 4)

Front

What is the effect of a 90° clockwise rotation on the coordinates (x, y)?

Back

(y, -x)

Front

What is the effect of a 270° counterclockwise rotation on the coordinates (x, y)?

Back

(-y, x)

Front

If a point (a, b) is rotated 180° about the origin, what will be its new coordinates?

Back

(-a, -b)

Front

What is the center of rotation in a geometric transformation?

Back

The fixed point around which a figure is rotated.

Front

How does a rotation differ from a reflection?

Back

A rotation turns a figure around a point, while a reflection flips it over a line.