Question 368741
1.{{{y=-(1/6)x-2}}}
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{{{12x-2y=-14}}}
{{{-2y=-12x-14}}}
2.{{{y=6x+7}}}
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Parallel lines have slopes that are identical.
{{{m[1]<>m[2]}}}
Perpendicular lines have slopes that are negative reciprocals.
{{{m[1]*m[2]=-1}}}
{{{-(1/6)(6)=-1}}}
{{{-1=-1}}}
The lines are perpendicular.
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{{{graph(300,300,-5,5,-5,5,0,-(1/6)x-2,6x+7)}}}