?????????????????? "represent a line" ???????????????
me never voted for no line, so it DONT represent me
take NE 2 points & draw strate line thru em...then see if other points on that line
me yuze (0,0 & (18,-9)
delta x=18, deltay=-9, slope=deltay/deltax=-9/18=-0.5
equashun: y=-0.5x
no yu see if other points R on this line