Here are the rotation rules: 90° clockwise rotation: (x,y) becomes (y,-x) 90° counterclockwise rotation: (x,y) becomes (-y,x) 180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y)
Is 90 degrees counterclockwise the same as 270 degrees clockwise?
The sum of the measures is 360. So moving in a clockwise direction for 270 degrees would end at the same place as moving 90 degrees in a counterclockwise direction.
How do you move counterclockwise?
Counterclockwise Rotations (CCW) follow the path in the opposite direction of the hands of a clock.
What does counterclockwise clock mean?
: in a direction opposite to that in which the hands of a clock rotate as viewed from in front.
How do you rotate a figure 90 degrees counterclockwise about the origin?
Rotations About The Origin
When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.