#include <vector>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <algorithm>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <string>
#include <cstring>
#include <complex>
#include <ctime>
#include <cstdlib>
 
using namespace std;
 
inline int to_int(string s) {int v; istringstream sin(s); sin >> v; return v;}
template<class T> inline string to_str(T x) {ostringstream sout; sout << x; return sout.str();}
 
typedef long long ll;
 
int main()
{
    int num;
    double sx1, sy1, sx2, sy2;
    double ex1, ey1, ex2, ey2;
 
    cin >> num;
 
    for(int i = 0; i < num; i++)
    {
        cin >> sx1 >> sy1 >> sx2 >> sy2 >> ex1 >> ey1 >> ex2 >> ey2;
 
        if( (sy2-sy1)/(sx2 - sx1) == (ey2-ey1)/(ex2-ex1))
        {
            cout << "YES" << endl;
        }
        else
        {
            cout << "NO" << endl;
        }
    }
}