Question

The line segment is rotated 270 degrees counterclockwise about the origin to form A'B'. Which statement describes A'B'?

Answer 1

If we have point (x, y), rotating it 90 degrees counterclockwise amounts in the point being (-y, x). 180 degrees is (-x, -y) and 270 is (y, -x). Since A and B are made by a line connecting 2 points, we can get the 270 degree rotations of both points to get A'=(3, -1) and B'=(3, -5). 

Answer 2

Answer

point (x, y), rotating it 90 degrees counterclockwise amounts in the point being (-y, x). 180 degrees is (-x, -y) and 270 is (y, -x). we can get the 270-degree rotations of both points to get A'=(3, -1) and B'=(3, -5)