Scale Factor and Dilations

Did the image enlarge, reduce or none of the above?

• Enlarge
• Reduce
• None of the above

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

What scale factor was used to produce the image?

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.7.G.A.1

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Tags

CCSS.HSG.CO.A.2

What scale factor was used to produce the image?

• 2.5
• 1.5
• 3.5
• 4

Tags

CCSS.8.G.A.3

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

In a dilation what mathematical operation is used with the scale factor?

• addition 
• subtraction 
• multiplication 
• division 

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

Which of the following is the algebraic representation for a dilation?

• (x, y) → (x, 3y)

• (x, y) → (3x, 3y)

• (x, y) → (x, y - 3)

• (x, y) → (.5x, .4y)

Tags

CCSS.8.G.A.3

Which of the following transformation will result in an image that is similar, but not congruent, to its original image?

• translation
• reflection
• rotation
• dilatation

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Under the dilatation with scale factor of 1/4, the transformed image is enlarged.

• True
• False

Tags

CCSS.8.G.A.3