SOLUTION: If the lines 4x-y+2=0 and x+2ky+1=0 are perpendicular to each other, determine the value of k

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Question 931563: If the lines 4x-y+2=0 and x+2ky+1=0 are perpendicular to each other, determine the value of k
Answer by tommyt3rd(5050)   (Show Source): You can put this solution on YOUR website!
For a line in the general form,
,

so

and

we require that

therefore...

so



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