Question

△mno is rotated 90° clockwise about the origin to produce △mno. write the rule for the rotation. (x, y)→(□,□)

Explanation:

Step1: Recall rotation rule

When a point $(x,y)$ is rotated 90 - degree clockwise about the origin, the $x$ - coordinate of the original point becomes the negative of the $y$ - coordinate of the new point, and the $y$ - coordinate of the original point becomes the $x$ - coordinate of the new point.

Step2: Write the rule

The rule for a 90 - degree clockwise rotation about the origin is $(x,y)\to(y, - x)$.

Answer:

$(y, - x)$