Dilation

What is Dilation?

• Dilation means to enlarge or reduce

• Dilation means to reflect on something

• Dilation means to like something

• Dilation means to make something different by making it smaller

Tags

CCSS.8.G.A.3

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)

• A'(9,9) B'(18,18) C'(27,9)

• A'(6,6) B'(9,9) C'(12,6)

• A'(0,0) B'(3,3) C'(6,0)

• A'(1,1) B'(2,2) C'(3,1)

Tags

CCSS.8.G.A.3

A scale factor of less than one means

• that the image will be larger than the pre-image.

• That the image will be the same as the pre-image.

• That you need to subtract that amount off  of each side.

• That the image will be a reduction of the pre-image.

Tags

CCSS.8.G.A.3

Solve the proportion.

• p=31.3

• p=308

• p=924

• p=532

Tags

CCSS.7.RP.A.2

Does the image show a Dilation?

• Yes

• No

Tags

CCSS.HSG.CO.A.2

Definition: The figure after a transformation has occurred. 

• Pre-image

• Image

• Translation

• Reflection

Tags

CCSS.HSG.CO.A.2

Definition: The figure before a transformation has occurred. 

• Pre-image

• Image

• Translation

• Reflection

Tags

CCSS.HSG.CO.A.2

What is (3, 6) under a dilation of 2?

• (3, 6)

• (1.5, 3)

• (6, 12)

• (12, 6)

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Similar figures have the same ______ but different ______. 

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The pair of figures is similar. Find the missing side.

• x = 1

• x = 3

• x = 9

• x = 5

Tags

CCSS.HSG.SRT.B.5