Dilations Formative

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'(0, 0), B'(3, 3), C'(6, 0)

• A'(1, 1), B'(2, 2), C'(3, 1)

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

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