You can put this solution on YOUR website! If you are finding the line perpendicular to x + 3y = 5, what is the slope of the line?
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Slope of the given line:
3y = -x+5
y = (-1/3)x + (5/3)
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slope = -1/3
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Slope of a perpendicular line: 3
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Cheers,
Stan H.