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Find the image of (−3, 4) after a 90 degree rotation counterclockwise about the origin.

Guest Jun 9, 2017
 #1
avatar+87301 
+2

 

 

(-3, 4)  rotated 90°  counter-clockwise about the origin →  (-4, -3)

 

[ 90°  counter-clockwise rotations follow the rule (x, y) → (-y, x)  ]

 

 

 

cool cool cool

CPhill  Jun 9, 2017

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