Scale Factor from Two Images

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

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

The transformation of triangle T to triangle T' is shown. Triangle T is _______ to triangle T' and its scale factor is ________.

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Which rule would dilate shows a scale factor of 4

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

Tags

CCSS.HSG.CO.A.2

Match the following

• A (3,3) B (6,6) C (9,9)

  A' (1,1) B' (2,2) C' (3,3)

• Scale factor of 3

• A (2,2) B (3,3) C (4,4)

  A' (6,6) B' (9,9) C' (12,12)

• Scale factor of 2

• A (2,2) B (3,3) C (4,4)

  A' (1,1) B' (1.5,1.5) C' (2,2)

• Scale factor of 1/2

• A (2,2) B (3,3) C (4,4)

  A' (4,4) B' (6,6) C' (8,8)

• Scale factor of 5

• A (1,1) B (2,2) C (3,3)

  A' (5,5) B' (10,10) C' (15,15)

• Scale factor of 1/3

Tags

CCSS.7.G.A.1

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

Tags

CCSS.8.G.A.3

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.

• It's an enlargement; the scale factor is 2.

• It's an enlargement; the scale factor is 1/2.

• It's a reduction; the scale factor is 1/2.

Tags

CCSS.8.G.A.3

Which of the following scale factors could have possibly created the dilation shown?

• 
• 
• 
• 

Tags

CCSS.8.G.A.3