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Which equation represents a line which is perpendicular to the line y = 5x - 8?
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Which equation represents a line which is perpendicular to the line y = 5x - 8?

User Manjunath Ballur
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When two equations are perpendicular their slopes are 90° apart. In the equation y=5x-8 the slope is 5. The perpendicular slope is negative and the inverse of the given slope. So in this case the perpendicular line will have the slope = - 1/5
User Ali Khalili
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