Quiz Dilations

Which graph shows the dilation with scale factor of 1/3?

• A

• B

• C

• D

To dilate, we _____________ Pre-image by a scale factor

• divide

• add

• multiply

• subtract

What is the scale factor?

• 1/2

• 2

• 3

• 1/3

If the scale factor is < 1, the image is ___

• enlarged

• reduced

• not changed

• unknown

If a scale factor is > 1, the image is ____

• reduced

• same

• unknown

• enlarged

What is the scale factor?

• 2

• 1/2

• 4

• 1/4

The triangle B is the dilated image of the triangle A. What is the scale factor?

• 1/3

• 3

• 1/2

• 2

Triangle ABC is dilated to A'B'C'. What is the scale factor?

• 2

• 3

• 4

• 1/2

The polygon ABCD is dilated to A'B'C'D'. What is the scale factor?

• 2

• 3

• 1/2

• 1/3