Dilation Around a Point

Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?

• Yes, enlarge

• Yes, reduce

• No

Find the SF and Center of Dilation.

• Center: (0,0)

  SF: 2

• Center: (0,0)

  SF: 4

• Center: (0,0)

  SF: 1/2

• Center: (0,0)

  SF: 1/4

Find the SF and Center of Dilation.

• Center: (7,-3)

  SF: 2

• Center: (7,-3)

  SF: 1/2

• Center: (-3,7)

  SF: 2

• Center: (-3,7)

  SF: 1/2

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

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

The scale factor for this dilation is:

Mathematical Equivalence

ON

Dilate ΔABC centered at the origin by a scale factor of 2.

Draw the dilation of RSTU by a SF of 1/2 centered at (0,2).

Draw the dilation of ABC by a SF of 2 centered at (0,-1).

Draw the following dilation.

A dilation is which of the following: 

• only an enlargement

• only a reduction

• either an enlargement or a reduction

• neither an enlargement nor a reduction