Final answer:
To reflect a point over the line y=x, swap the x-coordinate with the y-coordinate. For (-7,3), the reflected point is (3,-7). For (5,8), the reflected point is (8,5).
Step-by-step explanation:
To reflect a point over the line y=x, we swap the x-coordinate with the y-coordinate.
For the point (-7,3), the reflected point would be (3,-7).
For the point (5,8), the reflected point would be (8,5).