Transformations Review

Front

What is a rotation?

Back

When you turn a polygon around a point.

Front

What are the coordinates of B' after a 90° counterclockwise rotation of point B(4, -4)?

Back

(-4, 4)

Front

When the scale factor of a dilation is less than one, what type of dilation is it?

Back

Reduction.

Front

What type of rotation does a 180° rotation represent?

Back

A rotation that turns a figure halfway around a point.

Front

Does the image show a Dilation?

Back

Yes.

Front

What is the scale factor in a dilation?

Back

The ratio of the length of a side of the image to the length of the corresponding side of the original figure.

Front

What is a translation in geometry?

Back

When you move or slide a polygon from one place to another without changing its shape or orientation.

Front

What is a reflection in geometry?

Back

When you flip or mirror a polygon across a line.

Front

What are the coordinates of a point (x, y) after a 90° clockwise rotation?

Back

(-y, x)