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Which pair of equations represents two perpendicular lines? A. y=-7/8x+3 and -7y=-8x B. 8y=3x+40 and y=8/2x-1 C. 5y=15-2x and 2/5x-4=y D. y=9x+3 and y=9x-1/3

Which pair of equations represents two perpendicular lines? A. y=-7/8x+3 and -7y=-8x B. 8y=3x+40 and y=8/2x-1 C. 5y=15-2x and 2/5x-4=y D. y=9x+3 and y=9x-1/3
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5 votes
Which pair of equations represents two perpendicular lines?

A. y=-7/8x+3 and -7y=-8x
B. 8y=3x+40 and y=8/2x-1
C. 5y=15-2x and 2/5x-4=y
D. y=9x+3 and y=9x-1/3

asked
User Thorvald
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7.6k points

1 Answer

3 votes
I am pretty sure that the answer is A. because the slopes are reciprocals of each other, and so they are perpendicular
answered
User JEuvin
by
8.3k points
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