line tween 2 points (1,-3) & (4,-6)
deltax=3, deltay=-3, slope=-1
distans=root(9+9)=root(18) =4.242640687 (line length)
tu add (1/6) tu length...(7/6)*root(18)=1.16666666*4.242640687
nu leng=4.949747468 or bout 4.95
If extend line tu rite, add(1/6) tu x=3/6=0.5...nu x=4.5
delta y=(1/6)(-3)=-0.5, nu y=-6.5
nu point on rite side=(4.5,-6.5)