Rules Translation Rotation Reflection

Translations, reflections and rotations are all known as ________________________.

• Geometry

• Transformations

• Congruent

The rule for rotation of 180 degrees is  
(x, y) --> _

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

The rule for rotation of 90 degrees clockwise is  
(x, y) --> 

• (y, -x)

• (-y, x)

• (x, -y)

• (-x, y)

The rule for rotation of 90 degrees counterclockwise is  
(x, y) --> _

• (y, -x)

• (-y, x)

• (x, -y)

• (-x, y)

(x,y) --> (x+a, y+b)

• translation

• rotation

• reflection

• dilation

Which of the following maintains orientation?

• Rotation 90 ° 

• Translation

• Rotation 180 ° 

• Reflection over the x axis

(x,y) --> (x, -y)

• Reflection over the y-axis

• Reflection over the x-axis

• Translation 

• Rotation 180 ° 

(x,y) --> (-x, y)

• Reflection over the y-axis

• Reflection over the x-axis

• Translation 

• Rotation 180 ° 

Chose the correct transformation:
(x, y) --> (-y, x)

• Reflection across x-axis

• Reflection across y-axis

• 90 degree clockwise rotation or 270 degree counter clockwise rotation

• 90 degree counter clockwise rotation or 270 degree clockwise rotation

Chose the correct transformation:
(x, y) --> (x , y + 2)

• Translation 2 units up

• Translation 2 units left

• Translation 2 units down

• Translation 2 units right