Dilations About the Origin

Is this an enlargement or reduction? (blue = original image)

• reduction

• enlargement

Tags

CCSS.8.G.A.3

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

_{Line AB corresponds with what line?} 

• XZ

• XY

• YZ

• YX

Tags

CCSS.HSG.SRT.A.2

Dilate Point B by a scale factor of 1/2

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

Tags

CCSS.8.G.A.3

Dilate Point B by a scale factor of 3:

• (12,0)

• (12,12)

• (4,3)

• (0,12)

Tags

CCSS.8.G.A.3

A triangle has vertices A(0,0), B(8,0), C(3,-2). Find the coordinates of the triangle after a dilation with a scale factor of 4.

• A(3,3), B(4,4), C(-3,-4)

• A(-4,8), B(6.5,8), C(7,7)

• A(0,0), B(32,0), C(12,-8)

Tags

CCSS.8.G.A.3

After dilations, angles are ....

• similar

• congruent

• smaller

• larger

Tags

CCSS.8.G.A.3

After dilations, the sides of the figure are...

• always smaller

• always larger

• the same

• proportional

Tags

CCSS.8.G.A.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

Tags

CCSS.8.G.A.3

What is the center of dilation?

• (0,0)

• R

• C

• D

Tags

CCSS.8.G.A.3