Dilation Notes

Dilate the figure by a scale factor of 5 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'(15,15)
  B'(30,30)
  C'(45,15)
• A'(2,2)
  B'(1,1)
  C'(4,2)
• A'(15,15)
  B'(45,15)
  C'(30,30)
• A'(15,5)
  B'(11,11)
  C'(30,6)

Tags

CCSS.8.G.A.3

Tell whether the transformation is a dilation. Explain.

• No, scale factor isn't the same.
• Yes, scale factor is the same.

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Tell whether each transformation is a dilation. Explain.

• No, scale factor isn't the same.
• Yes, scale factor is the same

Does the image show a dilation?

• Yes
• No

Tags

CCSS.8.G.A.3

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated using the rule (x,y)→(3x, 3y), what are the coordinates of the dilated triangle?

• (5,3), (6,2), (1,-2)
• (6,0), (9,-3), (-6,-15)
• (2/3,0), (1,-1/3), (-2/3,-5/3)
• (-1,-3), (0,-4), (-5,-8)

Tags

CCSS.8.G.A.3

Which of the following rules would produce a dilation?

• (x, y) → (x-3, y-3)
• (x, y) → (3x, 3y)
• (x, y) → (x+3, y + 3)
• (x, y) → (.5x, y+.5)

Tags

CCSS.8.G.A.3

A dilation is which of the following: 

• An enlargement
• A reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

Tags

CCSS.8.G.A.3

Does the image show a Dilation?

• Yes
• No

 A dilation can produce a larger figure also called a(n)______

• reduction
• enlargement
• scale factor
• center of dilation

Tags

CCSS.8.G.A.3

If B (-10,-6) is dilated with a scale factor of 1/2 using the origin as the center of dilation, what is the coordinate for B'?

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

Tags

CCSS.8.G.A.3