????????????????????? "passeseseeseesesss thru" ????????????????
a line GO THRU a point
a strate line kan eve GO THRU 2 points (or 2000)
points=(-1,-2) & (1,3)
deltax=2, deltay=5, so slope=deltay/deltax=5/2=2.5
y=sumthun+2.5x
projejt line from (-1,-2) tu x=0...deltax=1, so deltay=2.5
so that point=(0,0.5)
y=2.5x+0.5