if ab does not = o and points (-a,b) and (-b,a) are in the same quadrant of the xy-plane, is the point (-x,y) in this same quadrant?
1) xy>0
2) ax>0
OA C
I understand that both are insufficient individually, but i do not understand how they are sufficient together. please explain
1) xy>0
2) ax>0
OA C
I understand that both are insufficient individually, but i do not understand how they are sufficient together. please explain
