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Algebra 12 Online
OpenStudy (anonymous):

Two perpendicular lines intersect at the origin. If the slope of the first line is 3, what is the equation of the second line?

OpenStudy (anonymous):

y = -1/3x just take the reciprocal of the first slope.

OpenStudy (anonymous):

So it's the reciprocal of the first slope and then change the sign?

OpenStudy (anonymous):

Yes

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