1)2x-3y=6 c ocju x: y=0, 2x=6,x=3 , X/x,y/=/3,0/ c ocju y: x=0, -3y=6, y=-2, Y/x,y/=/0,-2/2)xˇ2+y=4 c ocju x: y=0, xˇ2=4, x1=2,x2=-2, X1/x,y/=/2,0/, X2/x,y/=/-2,0) c ocju y: x=0, y=4, Y/x,y/=0,4/3)/x/+/y/=7 c ocju x: y=0, /x/=7, x1=7, x2=-7, X1/x,y/=/7,0/,X2/x,y/=/-7,0/ c ocju y: x=0,/y/=7, y1=7,y2=-7,Y1/x,y/=0,7/,Y2/x,y/=/0,-7/