Dilations and Scale Factor

Choose ALL the scale factors that will result in enlargements

• 1

• 2

• .5

• 5

• 1.2

Tags

CCSS.8.G.A.3

Is this an enlargement or a reduction?

• Enlargement

• Reduction

Tags

CCSS.8.G.A.3

Triangle ABC has vertices at A(2,3) B(-5,-1) C(0,5). Its image, Triangle A'B'C', has vertices at A'(4,6) B'(-10,-2) and C'(0,10). What is the scale factor?

• .5

• 1

• 2

• 4

Tags

CCSS.8.G.A.3

What is the scale factor?

A (1, 5)

A' (5, 25)

• 1/5

• 1

• 25

• 5

Tags

CCSS.7.G.A.1

A scale factor of 5 causes an...

• Enlargement/Bigger

• Reduction/Smaller

Tags

CCSS.8.G.A.3

Dilate by a scale factor of 3. 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

The point B (4,9) has a scale factor k = 2.

What is the new point?

• (2,4.5)
• (-8,-18)
• (8,18)
• (9,4)

Tags

CCSS.7.G.A.1

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

• measure; shapes
• sizes; shapes
• value; measures
• shape; sizes

Tags

CCSS.8.G.A.3

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

• .5

• .25

• 4

• 2

Tags

CCSS.8.G.A.3

Find side length X.

• 16
• 18
• 2.4
• 15

Tags

CCSS.HSG.SRT.A.2