Transformations & Similar Figures

Rotate the coordinates 90° CCW.
A (4, 1)
B (6, -2)
C (8, -4)

• A' (1, 4)
  B'(-2, -6)
  C' (-4, -8)
• A' (3, 4)
  B' (1, 6)
  C' (8, 2)
• A' (-1,4)
  B' (2,6)
  C'(4,8)
• A' (-1, -4)
  B'(-2, -6)
  C' (4, -8)

Tags

CCSS.8.G.A.3

CCSS.8.G.A.1

Translate the points 3 units right and 6 units down. 
S (4, -6)
T (-6, 10)
U (-4, -8)

• S' (-7, -12)
  T' (-3, -4)
  U' (5, 10)
• S' (7, -12)
  T' (3, 4)
  U' (1, 14)
• S' (7, 12)
  T' (3, 4)
  U' (1, 14)
• S' (7, -12)
  T' (-3, 4)
  U' (-1, -14)

Tags

CCSS.8.G.A.3

CCSS.8.G.A.1

The figures are similar. Find x. 

• 18.5
• 30.5
• 20.5
• 16.5

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Figure I and Figure II are similar figures. Which proportion must be true?

• 
• 
• 
• 

Which algebraic expression represents a dilation?

• (x,y)->(-x,-y)

• (x,y)->(x+5,y-8)

• (x,y)->(5x,5y)

• (x,y)->(-y,x)

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Write a rule for the translation.

•  (x -1, y  + 2)
•  (x -2, y  + 1)
•  (x +2, y  - 1)
• (x +1, y  -  2)

Tags

CCSS.HSG.CO.A.2

The pair of figures is similar. Find the missing side.

• x = 12
• x = 3
• x = 40
• x = 4

Tags

CCSS.HSG.SRT.A.2

What is the scale factor of the dilation?

• 5/2
• 3/2
• 7/2
• 2/3

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

How can this transformation be represented algebraically?

• (x + 4, y)

• (-x, -y)

• (-x, y)

• (y, -x)

How is trapezoid ABCD translated to trapezoid A'B'C'D'?

• Translated 5 units down and 5 units to the right
• Translated 5 units down and 1 to the right
• Translated 8 units down and 5 units to the right
• Translated 5 units down and 4 units to the right

Tags

CCSS.HSG.CO.A.2