SOLUTION: what is the slope of a line perpendicular to y=1/4x+12

Question 828369: what is the slope of a line perpendicular to y=1/4x+12
Found 2 solutions by TimothyLamb, stanbon:
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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perpendicular lines have negative reciprocal slopes:
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answer:
m = -4
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Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
what is the slope of a line perpendicular to y=1/4x+12
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The product of the slopes has to be -1.
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(1/4)x = -1
x = -4 (slope of the perpendicular line)
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Cheers,
Stan H.
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