from fractions import Fraction
def sroap(x1,y1,x2,y2):
	if x2 - x1 == 0:
		return float("inf")
	else:
		return Fraction(y2 - y1,x2 - x1)
		
N = int(input())
for n in range(N):
	Ax,Ay,Bx,By,Cx,Cy,Dx,Dy = map(lambda x: round(x * 10 ** 5),(map(float,input().split())))
	if sroap(Ax,Ay,Bx,By) == sroap(Cx,Cy,Dx,Dy):
        ????????????print("YES")
	else:
		print("NO")