Answer: PQ = 13
Distance formula: \(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\).
\[PQ=\sqrt{(-1+6)^2+(9+3)^2}=\sqrt{25+144}=\sqrt{169}=13\]
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Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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