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Equation of given line: 3x + y = 15

or y = -3x + 15

Slope of given line = coefficient of x = -3

Slope of perperndicular = -1/(slope of given line)

= -1 / (-3) = 1/3

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14y ago
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Q: Find the slope of a line perpendicular to 3x plus y equals 15?
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