Scale Factor and Dilations

What is the scale factor in the algebraic representation
(x,y) to (2x,2y)

• k=2
• k=1/2
• k=2.2
• k=0.5

Tags

CCSS.7.G.A.1

What is the scale factor from the small shape to the big shape?

• 1/2
• 7/3
• 2
• 10/3

Tags

CCSS.7.G.A.1

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

Tags

CCSS.8.G.A.3

Which is an example of a reduction?

• k = 1/2
• k = 1
• 3:2
• 250%

Tags

CCSS.7.RP.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

The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.

• reduction
• enlargement
• scale factor
• center of dilation

Tags

CCSS.7.G.A.1

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

• ½
• ¼
• 4
• 2

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

• A
• B
• C
• D

Tags

CCSS.HSG.CO.A.2

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