moneyman Master | Next Rank: 500 Posts View User Profile Posts: 468 Joined: Sat Mar 03, 2007 10:17 pm Thanked: 5 times Test prep 23.09.07 by moneyman » Sun Sep 23, 2007 2:26 am If ab is not equal to 0 and points (-a,b)(-b,a) are on the same quadrant on the xy plane, is point (-x,y) in this same quadrant?? (1)xy>0 (2)ax>0 Maxx Top Quote