Dilation Review

Front

What is a dilation?

Back

Dilation means to enlarge or reduce.

Front

What does a dilation produce?

Back

A dilation produces a similar figure.

Front

In a dilation, what mathematical operation is used with the scale factor?

Back

Multiplication.

Front

A dilation can be which of the following?

Back

Either an enlargement or a reduction.

Front

If the scale factor is 2, what happens to the size of the figure?

Back

The figure is enlarged to twice its original size.

Front

If the scale factor is less than 1, what happens to the figure?

Back

The figure is reduced.

Front

What is the coordinate of the image of point B (4,9) under a dilation with center at the origin and scale factor r = 2?

Back

(8,18).

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that determines how much the figure is enlarged or reduced.

Front

True or False: A dilation can only be an enlargement.

Back

False.

Front

What is the effect of a scale factor of 1 in a dilation?

Back

The figure remains the same size.