Answer
the lines are perpendicular
Work Step by Step
$ 3x + 4y = 8 \lt=\gt y= 2-\frac{3}{4}x$
$6 + 4x = 3y \lt=\gt y=2+\frac{4}{3}x$
$m=-\frac{3}{4}$ and $m=\frac{4}{3}$
$-\frac{3}{4}\times\frac{4}{3}=-1$
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