Notes on Rotations

 Rotations can be tricky. First I'll show you the RULE and then I'll show you a picture that might make more sense to an artist.

First, the RULE. Remember that counter-clockwise means "to the left" and every 90 degrees is one-quarter of a turn. Or, in fact, just one quadrant at a time!

Also notice that the numbers in the coordinates stay the same every time, but they get moved around and also we use the opposite sometimes. It can be a little confusing, but once you get the hang of it you'll find it makes a weird kind of sense!

Next, a picture. Notice how the shape rotates around the origin, like it's the center of a wheel. Letter A points to the right, and all the other letters point in different directions!