To rotate a point \( (x, y) \) by 180 degrees counterclockwise around the origin, you can use the following transformation:
\[ (x', y') = (-x, -y) \]
Given the point \( (2, 6) \):
- Apply the transformation:
- New x-coordinate: \( -2 \)
- New y-coordinate: \( -6 \)
Thus, after rotating the point \( (2, 6) \) by 180 degrees counterclockwise, the new point will be:
\[ (-2, -6) \]