from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
input = sys.stdin.readline

N = int(input())
eps = 0.000001

def answer():
    
    x1,x2,x3,y1,y2,y3 = map(int,input().split())
    
    X = [x1,x2,x3]
    Y = [y1,y2,y3]
    
    def eq(i,j):
        
        if Y[i]==Y[j]:
            
            if X[i]!=X[j]:
                return -1
            else:
                return 1
        return (X[i]-X[j])/(Y[j]-Y[i])
    
    def check(t):
        
        Z = [X[i]+Y[i]*t for i in range(3)]
        if len(set(Z))!=3:
            return False
        
        if (min(Z)==Z[1])|(max(Z)==Z[1]):
            return True

        return False
        
    if check(0):
        print('YES')
        return
    
    for i in range(3):
        for j in range(3):
            
            t = eq(i,j)

            if t<0:
                continue
            if t==0:
                if check(eps):
                    print('YES')
                    return
            if (check(t+eps)|check(t-eps)):
                print('YES')
                return
    print('NO')
    return
for _ in range(N):
    answer()