Rigid Transformations

Front

What are the three types of rigid transformations?

Back

Translations, rotations, and reflections.

Front

What do we call the new figure after a transformation?

Back

Image.

Front

What is the coordinate of A' if ABCD is rotated 180° about the origin and A is at (3, 5)?

Back

(-3, -5).

Front

Write the rule for the translation that moves a point 2 units to the right and 1 unit down.

Back

(x + 2, y - 1).

Front

What is the mathematical term for the line that you reflect a shape over?

Back

Line of reflection.

Front

What is a translation in geometry?

Back

A transformation that slides a figure in a straight line from one position to another without changing its size, shape, or orientation.

Front

What is a rotation in geometry?

Back

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

Front

What is a reflection in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Front

If a point (x, y) is reflected over the y-axis, what are the new coordinates?

Back

(-x, y).

Front

If a point (x, y) is rotated 90° counterclockwise about the origin, what are the new coordinates?

Back

(-y, x).