Answer :
parallel lines have the same gradient
the equation is y=mx+c...where m is the gradient
24) y=8x-3 y=-8x+3... not parallel
25) y=-2x+5 y=2x-6.... not parallel
26) y=-2x+5 y=0.5x-3... not parallel
27) y=-0.6x+2 y=-3/5x + 8/5
=-0.6x + 1.6...parallel
28) y=-8/3x+3 y=8/3x+4/3...not parallel
29) y=-5x+7/2 y=5x-6 ... not parallel
the equation is y=mx+c...where m is the gradient
24) y=8x-3 y=-8x+3... not parallel
25) y=-2x+5 y=2x-6.... not parallel
26) y=-2x+5 y=0.5x-3... not parallel
27) y=-0.6x+2 y=-3/5x + 8/5
=-0.6x + 1.6...parallel
28) y=-8/3x+3 y=8/3x+4/3...not parallel
29) y=-5x+7/2 y=5x-6 ... not parallel