Rotations Practice

Rotate  $180\degree$  counterclockwise about the origin

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Rotate $90\degree$ counterclockwise about the origin

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Rotate $270\degree$  clockwise about the origin

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Find the coordinates of $H'$  given a rotation  $90\degree$  counterclockwise the origin.

•  $H'\left(2,\ -1\right)$  
  

•  $H'\left(4,\ 1\right)$  
  

•  $H'\left(-1,\ -2\right)$  
  

•  $H'\left(-1,\ 2\right)$  
  

Find the coordinates of $D'$  given a rotation  $270\degree$  counterclockwise the origin.

•  $D'\left(1,\ -1\right)$  
  

•  $D'\left(-1,\ 1\right)$  
  

•  $D'\left(-1,\ -1\right)$  
  

•  $D'\left(1,\ 1\right)$  
  

What are the coordinates of the image of point D (5, -8) after a negative 180-degree rotation?

• (5, -8)

• (-5, 8)

• (5, 8)

• (-5, -8)

What are the coordinates of the image of point D (5, -8) after a negative 180-degree rotation?

• (5, -8)

• (-5, 8)

• (5, 8)

• (-5, -8)

What are the coordinates of the image of point E(-9, -8) after a clockwise 90-degree rotation?

• (-9, -8)

• (9, 8)

• (8, -9)

• (-8, 9)

To find a 90 degree clockwise rotation what do you use to change each point?

• (x,-y)

• (-x,y)

• (y,x)

• (y,-x)

To find a 90 degree counter-clockwise rotation what do you use to change each point?

• (y,x)

• (-y,x)

• (-x,-y)

• (x,y)