?????????????????? "ordered pare" ?????????????
me ges yu meen a POINT
formula for strate line....y=mx+konst, m=slope
look at the graf & yu see at y=-3 at x=0, so konst=-3
& kleer slope=1...go rite tu x=3 & yu see y=0, so deltay=3=deltax
slope=deltay/deltax=3/3=1