Dilations

Which of the following is a dilation?

• Only an enlargement

• Only a reduction

• Either an enlargement or a reduction

• Neither an enlargement nor a reduction

Tags

CCSS.8.G.A.3

The figure before a transformation has occurred is called what?

• Pre-image
• Image
• Translation
• Reflection

Tags

CCSS.HSG.CO.A.2

The figure after a transformation has occurred is called what?

• Pre-image
• Image
• Translation
• Reflection

Tags

CCSS.HSG.CO.A.2

Dilate a figure with coordinates of A(3,3), B(6,6), and C(9,3) by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?

• 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)

Tags

CCSS.8.G.A.3

What is the scale factor for the given dilation?

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.HSG.CO.A.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

If Triangle ABC is dilated using a scale factor of 1/2, what will be the coordinates of C'?

• (-1, -2.5)
• (12, 6)
• (3, -1.5)
• (0, 1.5)

Tags

CCSS.8.G.A.3

Which of these rules written using coordinate notation could be a rule for a reduction?

• (x, y)→(2x, 2y)
• (x, y)→(5/2 x, 5/2y)

• (x, y) →(0.5x, 0.5y)
• (x, y)→(5x, 5y)

Tags

CCSS.8.G.A.3

Triangle ABC will be dilated using the rule (x, y)→(2x, 2y).  What will be the coordinates of C'?

• (12, -3)
• (12, -6)
• (3, -1.5)
• (8, -5)

Tags

CCSS.8.G.A.3

To dilate a figure, _____________ the coordinates of the figure by the scale factor.

• multiply

• subtract

• add

• divide 

Tags

CCSS.8.G.A.3