Answer:
(5,6)
Explanation:
Initial Coordinate rotated 180° is just a sign change new coordinate
coordinate (x, y) rotated 180° is just a sign change (-x, -y)
if (-x, y) rotated 180° is just a sign change (x, -y)
if (x, -y) rotated 180° is just a sign change (-x, y)
if (-x, -y) rotated 180° is just a sign change (x, y)