X and y are switched and y times -1 so
reflection across the x=y line (identiy line)
and since the x place it times -1, that is a reflection across y axis
so reflection across x=y line and y axis
Are you looking for p=7.69411764
I need to see the rest to solve the k but I know that the direct is 50. is there any other part to it so I can solve it