Determine whether or not the two lines are parallel, perpendicular or neither. 9) y= 3x+1 y 1/3x+1 10) y= 5x-3 10x -2y 7 11) -2x - 4y = -8 -2x + 4y = -8 12) 2y -x=2 y = -2x+4 13) 4y = 3x+ 12 -3x + 4y = 2 14) 8x-4y= 16 5y- 10x = 3 15) 2x + 6y = -3 12y = 4x + 20 16) 2x - 5y=-3 5x +27 6

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