A (2,3) Ry = -x A'( , ) A (-3,4) Ry = -x A'( , ) A (3,-4) Ry = -x A'( , ) A (-1,-2) Ry = -x A'( , )

Ingat rumus refleksi dibawah :
A(x,y) —R[y=-x]— A'(-y,-x)

A(2,3) —R[y=-x]— A'(-3,-2)
..
A(-3,4) —R[y=-x]— A'(-4,3)
..
A(3,-4) —R[y=-x]— A'(4,-3)
..
A(-1,-2) —R[y=-x]— A'(2,1)