[PRACTICE] Dilations

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

• A'(0,0) B'(3,3) C'(6,0)

Tags

CCSS.8.G.A.3

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?

• (5,3), (6,2), (1,-2)

• (6,0), (9,-3), (-6,-15)

• (-1,-3), (0,-4), (-5,-8)

• (⅔,0), (1,-⅓), (-⅔,-5/3)

Tags

CCSS.8.G.A.3

Choose the correct scale factor:

• 3

• ½

• 2

• ⅓

Tags

CCSS.HSG.CO.A.2

Dilate point B from the origin by a scale factor of ½.

• (-1.5 , 1)

• (1.5 , -4)

• (-1 , -1.5)

• (-2 , -2)

Tags

CCSS.8.G.A.3

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

• ¼

• 2

• ½

• 4

Tags

CCSS.8.G.A.3

(x, y) -> (2x, 2y)

What is the coefficient 2 mean?

• plot 2 to the right and 2 up

• scale factor is 2 creating a new figure half the size

• scale factor is 2 making a figure twice the size

• I don't understand this question

Tags

CCSS.8.G.A.3

The red triangle is the pre-image and has been dilated by a scale factor of 1/4. Which triangle is it's new image?

• green triangle

• red triangle

• black triangle

• none of these

Tags

CCSS.8.G.A.3

What is C'?

• (1,-1)

• (2,-1)

• (1,1)

• (4,-3)

Tags

CCSS.8.G.A.3

Dilate by scale factor of 3 at center (-3,1).

What is F'

• (-6,-6)

• (0,4)

• (-1,4)

• (1,5)

Tags

CCSS.8.G.A.3

What is L' ?

• (5,-10)

• (4,-9)

• (6,-8)

• (5,10)

Tags

CCSS.8.G.A.3