The locus of a point that moves such that its distance from the X-axis is twice its distance from the line $x - y = 0$ is __________.

Question

$x^2 + 4xy - y^2 = 0$

$2x^2 - 4xy + y^2 = 0$

$x^2 - 4xy + y^2 = 0$

$x^2 - 2xy + y^2 = 0$

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