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OpenStudy (anonymous):
What is the slope of any line perpendicular to the line formed by the equation 9x – 27y = 7?
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OpenStudy (anonymous):
Estudier ur so smart
OpenStudy (anonymous):
The slope of the above line is -(9/-27) = 1/3. The slope of any perpendicular line is the negative reciprocal ie -3. So eg y =-3x
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