SOLUTION: Two lines have slopes 2k-4 and k+6. What value(s) of k will produce perpendicular lines? I think the answer is k=-4+ or

SOLUTION: Two lines have slopes 2k-4 and k+6. What value(s) of k will produce perpendicular lines? I think the answer is k=-4+ or - sqrt62/2???

Question 132777: Two lines have slopes 2k-4 and k+6. What value(s) of k will produce perpendicular lines? I think the answer is k=-4+ or - sqrt62/2???
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The slopes need to have the relation
where
and

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