???????????????????? "passessestsrdsrdesrs thru" ????????????????
a line GO thru a point
in this kase, point=(3,-1)
y=-(2/3)x +konst
projejt line from x=3 tu x=0...deltax=-3
deltay=slope*deltax=-(2/3)*(-3)=+2
y at x=0...is 3+2=5
this point=(0,5)
y=-(2/3)x +5