import sys
input = sys.stdin.readline
T = int(input())
XY = [list(map(int, input().split())) for _ in range(T)]
for x1, y1, x2, y2, X1, Y1, X2, Y2 in XY:
    if x1==X1 and y1==Y1 and x2==X2 and y2==Y2:
        print("Yes")
        continue
    x = x2-x1
    y = y2-y1
    X = X2-X1
    Y = Y2-Y1
    if x*Y==y*X:
        if x**2+y**2>X**2+Y**2:
            print("Yes")
        else:
            print("No")
    else:
        print("No")