t=int(input()) for _ in range(t): ax, ay, bx, by, cx, cy=map(int, input().split()) bumbo=ax*bx*cx if ax>bx: ax, ay, bx, by=bx, by, ax, ay if bumbo==0: if ax==0: if bx==0: if cy==0: print('Yes') else: print("No") else: if by==0: if cx==0: print("Yes") else: print("No") else: if(by*cy==bx*cx): print("Yes") else: print("No") else: if ay*by==ax*bx: print("Yes") else: print("No") elif cy==0: if cx>0: if ay==0 and by==0: print("Yes") else: print("No") else: print("No") else: if ay*bx*cx+by*ax*cx==cy*(ax*bx-ay*by): print("Yes") else: print("No")