def solve() -> bool:
    x1, y1, x2, y2, X1, Y1, X2, Y2 = map(int, input().split())

    if (x1, y1) == (X1, Y1) and (x2, y2) == (X2, Y2):
        return True

    vx = x2 - x1
    vy = y2 - y1

    ux = X2 - X1
    uy = Y2 - Y1

    if vx * uy - vy * ux != 0:
        return False

    if vx * ux + vy * uy < 0:
        return False

    if vx * vx + vy * vy <= ux * ux + uy * uy:
        return False

    return True


for _ in range(int(input())):
    print("Yes" if solve() else "No")