To find the new coordinates of a point \((x, y)\) after rotating it clockwise by 270 degrees about the origin, you can use the rotation formula for clockwise rotation.
Rotating a point \((x, y)\) by 270 degrees clockwise is equivalent to rotating it by 90 degrees counterclockwise. The rotation formula for 90 degrees counterclockwise is:
\[ (x, y) \rightarrow (-y, x) \]
So, after a 270-degree clockwise rotation, the new coordinates of the point will be:
\[ \text{New point} = (-y, x) \]
Thus, the new point after rotating \((x, y)\) 270 degrees clockwise about the origin is:
\[ (-y, x) \]