Transformations Similar Figures Scale Factors

Why does the scale factor of "1" NOT result in a dilation?

• making an image 1 times larger would not change its size, therefore it would remain the same/congruent image

• 1 cannot be a scale factor because it is not a fraction

• 1 cannot be a scale factor because it is not a decimal

Tags

CCSS.8.G.A.3

Which scale factor below would result in a dilation that is smaller than the pre-image?

• 0.5

• 3.5

• 2

• 4

Tags

CCSS.8.G.A.3

A dilation that increases in size will always have a scale factor that is...

• negative

• exactly 1

• greater than 1

• less than 1

Tags

CCSS.8.G.A.3

What scale factor was used in this magnifying glass?

• 10

• 5

• 2.5

• 2

Tags

CCSS.7.G.A.1

Which image was the original/pre-image?

• ABCD (blue/larger)

• A'B'C'D' (orange/smaller)

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Which of the following statements are true about the dilation that occurred? Select all that apply.

• the pre-image increased in size

• the pre-image decreased in size

• the length of AB to A'B' increased from 2 to 4

• the length of AB to A'B' decreased from 4 to 2

• the scale factor used for this dilation was 1/2 or 0.5

Tags

CCSS.8.G.A.3

In a DILATION, everything about the two shapes/images is congruent (same) except...

• size

• angles

• the type of shape

Tags

CCSS.8.G.A.3

Dilations can only increase in size.

• true

• false

Tags

CCSS.8.G.A.3

Dilations create SIMILAR figures, which means the dimensions (side lengths) of the images must be...

• proportional ratios

• exactly the same

• even numbers

• odd numbers

Tags

CCSS.8.G.A.3

SCALE FACTOR describes the number that is multiplied by a pre-image that determines...

• how many times bigger an image gets

• how many times smaller an image gets

• how many times bigger or smaller an image gets

Tags

CCSS.7.G.A.1