Geometrymedium · Past Paper
If the point (x, y) is equidistant from (5, 1) and (-1, 5), then:
A3x = 2y
Bx = y
C2x = 3y
D3x = 5y
✓ Correct Answer: A — 3x = 2y
(x-5)^2 + (y-1)^2 = (x+1)^2 + (y-5)^2. Simplifying: -10x + 25 - 2y + 1 = 2x + 1 - 10y + 25 => -12x = -8y => 3x = 2y.
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