Answer:
(-6, 7), (-4, 7), (-7, 5), (-2, 5)
Explanation:
(2, -2) -> (2-8, -2+9) -> (-6, 7)
(4, -2) -> (4-8, -2+9) -> (-4, 7)
(1, -4) -> (1-8, -4+9) -> (-7, 5)
(6, -4) -> (6-8, -4+9) -> (-2, 5)
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