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Mathematics 7 Online
OpenStudy (anonymous):

The slope of a line is -3. Find the slope of a line that is perpendicular to this line.

OpenStudy (anonymous):

do you know of any property regarding slopes of two perpendicular lines?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

ok.....do you know of tan(angle)

OpenStudy (anonymous):

never mind i figured it out thx though.

OpenStudy (anonymous):

the property is that slope1*slope2=-1

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