??????????????? " passeseeseesessss thru" ??????????????
a line GO THRU a point
point=(3,-11)
parallel tu y=-3x+wotever...slope=-3
formula: y=-3x+konst
projekt line from x=3 tu x=0...deltax=-3, deltay=slope*deltax=(-3)*(-3)=9
y0=-11+9=-2
formula: y=-3x-2