A rotation of 270 degrees counterclockwise is a transformation that turns a figure around a fixed point by 270 degrees in the counterclockwise direction. This rotation can be visualized as a quarter turn in the counterclockwise direction. It is equivalent to rotating the figure three-fourths of a full revolution counterclockwise.
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(x,y)-->(y,-x) A transformation in which every point moves along a circular path around a fixed point
Because 180 degrees clockwise is the same as 180 degrees counterclockwise.
180 degrees.
(x,y)-> (-y,x)
(x,y) to (x,-y). You would keep the x the same, but turn the y negative. This is actually the rule for a 90 degree counterclockwise rotation, but they're the same thing, they would go to the same coordinates.
-270 degrees = -4.7 radians.