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Geometry 7 Online
OpenStudy (anonymous):

Which of the following pairs of slopes are of perpendicular lines? 1/2 and 2 3/4 and -4/3 -2/5 and -5/2

OpenStudy (anonymous):

I Think -2/5 and -5/2

OpenStudy (anonymous):

it is not right

OpenStudy (anonymous):

two lines are perpendicular if multiplication of two gradient is (-1)

OpenStudy (anonymous):

here answer is (3/4) & (-4/3)

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