#include <bits/stdc++.h>
using namespace std;
using ll = long long;

bool solve(){
    ll x1, y1, x2, y2, x3, y3;
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;
    if(x1 * y2 < x2 * y1){
        swap(x1, x2);
        swap(y1, y2);
    }
    complex<long double> p1(x1, y1), p3(x3, y3);
    p3 /= p1;
    return abs(x2 * p3.imag() - p3.real() * y2) <= 1e-10;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T;
    cin >> T;
    while(T--) cout << (solve() ? "Yes" : "No") << '\n';
}