9514 1404 393
Answer:
(2, 3), (-3, 2), (-2, -3), (3, -2)
Explanation:
You can pick any point you like, then rotate it around the origin to the four quadrants (or axes) by the transformation ...
(x, y) ⇒ (-y, x) . . . . . . . . . 90° rotation CCW
That is a rotation 90° CCW. Of course a rotation CW can do the same thing for you.
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One possible square is ...
(2, 3), (-3, 2), (-2, -3), (3, -2)