Which pair of equations when graphed has lines that are perpendicular? A. Y= 2x- 7 X+ 3y= 3 B. 2y= -3x+ 5 2x- 3y= 4 C. 5x- 8y= 9 12x- 5y= 7 D. 3X+ 6Y= 8 Y= 3x- 8

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asked Jan 19, 2019 71.6k views

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Mallika · Answer 1 · 2019-01-24T23:03:30+0000

option B
when rearranged the two equations are;

y= -3/2x +5/2 and y= 2/3x + 4

they are perpendicular as the gradient are opposite each other -3/2 is the negative and flipped version of 2/3

Which pair of equations when graphed has lines that are perpendicular? A. Y= 2x- 7 X+ 3y= 3 B. 2y= -3x+ 5 2x- 3y= 4 C. 5x- 8y= 9 12x- 5y= 7 D. 3X+ 6Y= 8 Y= 3x- 8

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