a paralel line has same slope 4x+y-2=0 4x+1y=2 slope=-4/1=-4
therefor the other line has to have a slopt of -4
y=mx+b m=slope b=y intercept slope=-4 y=-4x+b input a point tha we ar given (4,-3) x=4 y=-3 -3=-4(4)+b -3=-16+b add 16 13=b y=-4x+13 get to ax+by=c form add 4y both sides 4x+y=13 is the euation