What is the image of (5,7)(5, 7)(5,7) reflected over the line y=xy = xy=x?
(−5,7)(-5, 7)(−5,7)
(7,5)(7, 5)(7,5)
(−7,−5)(-7, -5)(−7,−5)
(5,−7)(5, -7)(5,−7)