Work Step by Step
$y = 4x-2$ $-x+4y = 0$ $-x+4y + x = 0+ x$ $4y = x$ $4y/4 = x/4$ $y = 1/4*x$ $4*1/4 = 1$, so the slopes aren't perpendicular. The slopes aren't the same, so the lines aren't parallel.
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