## https://yukicoder.me/problems/no/3180


def solve(ax, ay, bx, by, cx, cy):
    left = (cx ** 2, cx ** 2 +  cy ** 2)
    right = (( ax * bx - ay * by) ** 2, (ax ** 2 + ay ** 2) * (bx ** 2 + by ** 2))

    if left[0] * right[1] == left[1] * right[0]:

        if cx >= 0 and (ax * bx - ay * by) >= 0:
            return "Yes"
        elif cx < 0 and (ax * bx - ay * by) < 0:
            return "Yes"
        else:
            return "No"
    else:
        return "No"

    


def main():
    T = int(input())
    answers = []
    for _ in range(T):
        ax, ay, bx, by, cx, cy = map(int, input().split())
        ans = solve(ax, ay, bx, by, cx, cy)
        answers.append(ans)

    for ans in answers:
        print(ans)





if __name__ == "__main__":
    main()