Question

How to rotate a shape on a grid 270°

Answer 1

Using notation, rotate the point (3, -5) about the origin 270 degrees.' Since the rule for a 270 degrees rotation is (x, y) --------> (y, -x), the new point would be (-5, -3). By using the rule for a 180 degrees rotation, we can get the coordinates for the image: (2, 1) becomes (-2, -1)