Final answer:
When a line is rotated 90 degrees clockwise about the origin, it undergoes a rotation 90 degrees clockwise.
Step-by-step explanation:
When a line is rotated 90 degrees clockwise about the origin, the result is a rotation 90 degrees clockwise. This means that the line will turn in the clockwise direction by 90 degrees. To understand this visually, imagine drawing a line on a piece of paper and then turning the paper 90 degrees to the right while keeping the line fixed at the same point.