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Mathematics 7 Online
OpenStudy (anonymous):

The slope of line l is 3/4. Line m is perpendicular to line l. What is the slope of line m?

OpenStudy (anonymous):

The slope of line m is -4/3

OpenStudy (jdoe0001):

slope of a perpendicular line to another is the NEGATIVE RECIPROCAL of the other line \(\bf \textit{slope of line l}=\cfrac{{\color{blue}{ a}}}{b}\qquad \textit{slope of a line perpendicular to it}=-\cfrac{b}{{\color{blue}{ a}}}\)

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