Dilation Area

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

• an enlargement

• a reduction

• a scale factor

• bigger

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Find the scale factor of a dilation from T to R

• 0.5

• 3

• 2

• 4

What is the rule for the dilation pictured?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x, 2y)

• (x, y) → (2x, 3y)

The red triangle has been dilated by a scale factor of 1/4, which triangle represents the image? 

• green triangle 

• red triangle 

• black triangle

• none of these 

What is the rule for the dilation pictured below?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x , 2y)

• (x, y) → (2x, 3y)

The scale factor for this dilation is:

Mathematical Equivalence

ON

Does the image show a Dilation?

• Yes

• No

Circle I was dilated with the origin as the center of dilation to create Circle II. Which rule best represents the dilation applied to Circle I to create Circle II?

Tags

TEKS 8.3C