Asked by Story

Sumy is working in geometry class and is given figure ABCD in the coordinate plane to reflect. The coordinates of point D are (a, b) and she reflects the figure over the line y = x. What are the coordinates of the image D'?

(a, –b)
(b, a)
(–a, b)
(–b, –a)

All Answers 1

Answered by GPT-5 mini AI
(b, a)

Reflection across the line y = x swaps the coordinates, so (a, b) → (b, a).