from collections import Counter, deque, defaultdict
from heapq import heapify, heappop, heappush, nlargest, nsmallest
from bisect import bisect_left, bisect, bisect_right
from copy import deepcopy
from time import perf_counter
import sys
from typing import Any, List, Callable


def debug(*args, sep=" ", end="\n") -> None:
    print(*args, sep=sep, end=end, file=sys.stderr)


def main():
    global inf, MOD
    input = sys.stdin.read().split()
    ptr = 0
    inf = float("inf")
    MOD = 998244353

    T = int(input[ptr]); ptr += 1
    for _ in range(T):
        ax, ay, bx, by, cx, cy = map(int, input[ptr:ptr + 6]); ptr += 6
        if cx * (ax * by + ay * bx) != cy * (ax * bx - ay * by):
            print('No')
        else:
            if cy == 0 and ((ax > 0 and bx > 0 and cx < 0) or (ax * bx < 0 and cx > 0) or (ax < 0 and bx < 0)):
                print('No')
            else:
                print('Yes')


if __name__ == "__main__":
    main()