To find the new coordinates of point \( A(2, 6) \) after a 90-degree counterclockwise rotation around the origin, you can use the following transformation formula:
If a point \( (x, y) \) is rotated 90 degrees counterclockwise, the new coordinates \( (x', y') \) can be calculated as:
\[ (x', y') = (-y, x) \]
For point \( A(2, 6) \):
- Substitute \( x = 2 \) and \( y = 6 \): \[ x' = -y = -6 \] \[ y' = x = 2 \]
Thus, the new coordinates after the rotation are:
\[ A'(-6, 2) \]
So, the new point after the 90-degree counterclockwise rotation is \( A'(-6, 2) \).