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Problem 395

Geometry Difficulty 2.0 Find the answer UKMT Intermediate Mathematical Challenge · United Kingdom · 2022

Reflection in the line $l$ transforms the point with coordinates $(5, 3)$ into the point with coordinates $(1, -1)$ . What is the equation of the line $l$ ? (A) $y = x - 2$ (B) $y = 1$ (C) $x = 3$ (D) $y = 2 - x$ (E) $y = 4 - x$

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