for _ in range(int(input())):
    a,b,c,d,e,f,g,h = map(int,input().split())
    i = (a-c)**2+(b-d)**2>(e-g)**2+(f-h)**2
    j = (a-c)*(f-h)==(b-d)*(e-g)
    print("Yes" if i and j else "No")