T=int(input())
for tests in range(T):
    x1,y1,x2,y2,X1,Y1,X2,Y2=map(int,input().split())

    dis1=(x1-x2)**2+(y1-y2)**2
    dis2=(X1-X2)**2+(Y1-Y2)**2

    if (x2-x1)*(Y2-Y1)!=(y2-y1)*(X2-X1):
        print("No")
    else:
        if dis2<dis1:
            print("Yes")
        else:
            print("No")