A 90-degree clockwise rotation about the origin can be represented by the transformation of the coordinates of a point \((x, y)\) to \((y, -x)\).
To find an equivalent transformation, we can consider the other options given:
- 270 degrees counterclockwise rotation: This is equivalent to a 90-degree clockwise rotation. A 270-degree counterclockwise rotation transforms \((x, y)\) to \((-y, x)\), which is equivalent to \((y, -x)\) when you think of the rotations in terms of how they affect the position of points in a cartesian coordinate system.
Thus, the correct answer is a 270 degrees counterclockwise rotation.