t=int(input())

for _ in range(t):
  a,b,c,d,x,y,z,w=map(int,input().split())
  p1=[a,b]
  p2=[c,d]
  q1=[x,y]
  q2=[z,w]
  vec1=[c-a,d-b]
  vec2=[z-x,y-w]
  if (c-a)**2+(d-b)**2<=(z-x)**2+(y-w)**2:
    print('No')
    continue
  if (c-a)*(z-x)==0:
    if c-a!=0 or z-x!=0:
      print('No')
      continue
    if (d-b)*(y-w)<0:
      print('No')
    else:
      print('Yes')
    continue
  if (c-a)*(z-x)<0:
    print('No')
    continue
  if (c-a)*(y-w)==(d-b)*(z-x):
    print('Yes')
  else:
    print('No')