April 15 Transformations Review

Translations, reflections and rotations are all known as ________________________.

• Geometry
• Transformations
• Congruent

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Transformation

Write a rule for the translation.

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

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation
• 90^o counter clockwise rotation
• Reflection across the y-axis
• Reflection across the x-axis

Point (-5,2) is reflected over the y axis.  Where is the new point located?

• (5,2)
• (-5,-2)
• (-5,2)
• (5,-2)

Apply the following rule to the point (-5,6):
(x,y)-->(y,-x)

• (-5,-6)
• (5,-6)
• (6,5)
• (-6,5)

The rule for rotation of 90 degrees clockwise is

(x, y) --> _

• (y, -x)

• (-y, x)

• (x, -y)

• (-x, y)

The rule for rotation of 270 degrees counterclockwise is

(x, y) --> _

• (y, x)

• (-y, x)

• (y, -x)

• (x, -y)

When you translate, (x,y+6) will move _____.

• 6 units right

• 6 units left

• 6 units up

• 6 units down

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)