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Are the pairs parallel, perpendicular, or neither

3x+4y=1
4x+3y=8

I say they are perpendicular

1 answer

slope of first line is -3/4
slope of second is -4/3

their product is NOT equal to -1, so they are not perpendicular, and since their slopes are different, they are not parallel.
So that leaves the the "neither" option

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