strate line thru points: (-9,-2) & (2, -6)... deltax=11, deltay=-4... slope=deltay/deltax=-4/11=-0.3636363636363663... formula: y=(-4/11)x + konst... projekt line from x=-9 tu x=0...deltax=9... deltay=slope*deltax=-(4*9/11)=-36/11... so y at x=0 is -2-36/11 or (-22-36)/11=-58/11=-5.272727272727... y=(-4/11)x-5.272727272727272...