Philip P. answered 07/27/21
Affordable, Experienced, and Patient Geometry Tutor
When you reflect a point across the line y = x, you exchange the x and y coordinates. For example:
E(1,6) -----> E'(6,1) which is the same as point G
If the point lies on the line y = x, such as points D and F, then the image is the same as the original point,