Question

A segment with endpoints X (6, 2) and Y (- 1, - 3) is rotated 90º about the origin. What are the coordinates of X Prime and Y Prime?

Answer 1

The line XY is shown in the diagram below
Coordinate X (-6, 2) rotated 90° through the origin, then coordinate X' is (2, 6)
Coordinate Y (-1, -3) rotated 90° through the origin, then coordinate Y' is (-3, -1)