Exploring Rotations on the Coordinate Plane

Rotations
When rotating points 90 degrees CCW, describe the rule for the corresponding point as it moves with regard to the center of rotation.[br][br](x, y) --> (____, _____)
When rotating points 180 degrees CCW, describe the rule for the corresponding point as it moves with regard to the center of rotation.[br][br](x, y) --> (____, _____)
When rotating points 270 degrees CCW, describe the rule for the corresponding point as it moves with regard to the center of rotation,[br][br]
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– Roy Sam, Kim Kembitzky, Rick Stuart

Information: Exploring Rotations on the Coordinate Plane