Dilations and Similarity in the Coordinate Plane

A dilation is which of the following: 

• only an enlargement

• only a reduction

• Either an enlargement or a reduction

• Neither an enlargement or a reduction

Does the image show a dilation?

• Yes

• No

A dilation can produce a larger figure or a(n)______
use a synonym for larger

• reduction

• enlargement

• scale factor

• center of dilation

A dilation can produce a smaller figure or a(n)______
use a synonym for smaller

• reduction

• enlargement

• scale factor

• center of dilation

What is the definition of dilation,  in mathematical terms?

• to make larger or smaller

• to only make larger

• all of the above

• to only make smaller

When A(3, 6) is under a dilation of 2 what are the coordinates of A'?

• (3, 6)

• (1.5, 3)

• (6, 12)

• (12, 6)

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True

• False

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True

• False

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

• addition 

• subtraction 

• multiplication 

• division 

The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.

• reduction

• enlargement

• scale factor

• center of dilation