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\n')
                else: print("No\n")
            else:
                if by==0:
                    if cx==0: print("Yes\n")
                    else: print("No\n")
                else:
                    if(by*cy==bx*cx): print("Yes\n")
                    else: print("No\n")
        else:
            if ay*by==ax*bx: print("Yes\n")
            else: print("Noc\n")
    else:
        if ay*bx*cx+by*ax*cx==cy*(ax*bx-ay*by): print("Yes\n")
        else: print("No\n")