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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?
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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
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OpenStudy (nikato):
Your welcome
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