Rotating on a Coordinate Plane
A rotation is a transformation in which an object turns around a fixed point called the point of rotation. To rotate a certain number of degrees on a coordinate plane, there are three rules. Rule number one: . This is for a 90 rotation counterclockwise or a 270 rotation clockwise. Rule number two: . This is for a 180 rotation counterclockwise or clockwise. Rule number three: . This is for a 270 rotation counterclockwise or a 90 clockwise. The rotation shown in the example above is a 180 rotation.