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

   P1 = complex(x1, y1)
   P2 = complex(x2, y2)
   Q1 = complex(X1, Y1)
   Q2 = complex(X2, Y2)

   A = P1-P2
   B = Q1-Q2

   if A == B == 0:
      print("Yes")
   elif abs(A) > abs(B) and B != 0 and (A/B).imag == 0:
      print("Yes")
   else:
      print("No")