When a point $(x, y)$ is rotated 90° clockwise about the origin, the transformation rule is:

$(x, y) \mapsto (y, -x)$

Thus, the rule for the rotation of hexagon JKLMNO to produce J'K'L'M'N'O' is:

$(x, y) \mapsto (y, -x)$

Would you like further explanation or clarification?

Here are 5 related questions to explore this concept:

1. What would the rule be for a 90° counterclockwise rotation?
2. How would you rotate a point 180° about the origin?
3. What effect does a 270° clockwise rotation have on coordinates?
4. How do you find the new coordinates of a specific vertex after rotation?
5. What changes if the hexagon is rotated around a point other than the origin?

Tip: Remember, when rotating points, clockwise and counterclockwise rotations produce different transformations!