Reflection and Rotation Review

What type of transformation is shown?

• Translation

• Reflection

• Rotation

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Transformation

Triangle A is rotated 90° clockwise with the origin as the center of rotation to create a new figure. Which rule describes rotating 90° clockwise?

• (x,y)→(y, -x) 
• (x,y)→(-x,-y)
• (x,y)→(-y,x)
• (x,y)→(x,y)

Triangle A is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes rotating 270° counterclockwise?

• (x,y)→(y, -x) 
• (x,y)→(x,y)
• (x,y)→(-y,x)
• (x,y)→(-x,-y)

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

Find K' if the figure is reflected across the x-axis

• (4, 1))
• (-1, -4)
• (1, -4)
• (1, 4)

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Is the picture being reflected in the y-axis or x-axis?

• y-axis
• x-axis

What type of rotation does this represent (from red to blue)?

• 270⁰ clockwise
• 360⁰
• 90⁰ counterclockwise
• 180⁰