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Mathematics 13 Online
OpenStudy (lovelyanna):

Select the pair of equations whose graphs are perpendicular. A. 2x – 8y = 9 12x – 3y = 7 B. 2y = –3x + 5 2x + 3y = 4 C. 3x + 6y = 8 y = 2x – 8 D. y = 2x – 7 x + y = 3 Is it B?

OpenStudy (nikato):

Yes

OpenStudy (lovelyanna):

@math&ing001 or maybe D?

OpenStudy (nikato):

It can't be D

OpenStudy (nikato):

The first equation has a slope of 2 but the other has a slope of -1. 2 and -1 are not negative reciprocal

OpenStudy (lovelyanna):

Oh, ok, thanks

OpenStudy (nikato):

Your welcome

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