Yaretzi| Quiz 6.1- 6.3

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

A dilation produces a congruent figure

• True

• False

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

The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

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

• addition 

• subtraction 

• multiplication 

• division 

What type of transformation is this?

• rotation

• translation

• reflection

• dilation

A dilation always produces a similar figure. Similar figures have the same ______ but different ______. 

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

A dilation always produces a congruent figure.

• True

• False

The red triangle has been dilated by a scale factor of 1/4 about the origin, which triangle is it's new image? 

• green triangle 

• red triangle 

• black triangle

• none of these 

What are the coordinates for the center of dilation?

• (0, 0)

• (-3, -1)

• (-12, 6)

• (-3, -3)