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Linear Algebra 13 Online
OpenStudy (anonymous):

Lines c and d are perpendicular. If the slope of line c is -4, what is the slope of line d?

OpenStudy (anonymous):

Perpendicular slopes are the opposite AND the reciprocal of each other The opposite of -4 is 4 and the reciprocal of 4 is \(\large\frac{1}{4}\)

OpenStudy (anonymous):

thank u

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