Question

Triangle fgh with vertices f(1, 8), g(5, 7), and h(2, 3) in the line y = x

Answer 1

see explanation

Explanation:

assuming you require the coordinates of the points under a reflection in the line y = x

under a reflection in the line y = x

a point (x, y ) → (y, x ) , then

F (1, 8 ) → (8, 1 )

G (5, 7 ) → G' (7, 5 )

H (2, 3 ) → H' (3, 2 )