#include <iostream>
#include <cstdio>
#include <algorithm>
#include <queue>
#include <vector>
#include <iterator>
 
using namespace std;
 
int main(){
     
    int n;
     
    float x[4], y[4];
     
    cin >> n;
     
    for(int loop = 0; loop < n; loop++){
        for(int i = 0; i < 4; i++){
            cin >> x[i] >> y[i];
        }
        x[1] -= x[0];
        y[1] -= y[0];
        x[3] -= x[2];
        y[3] -= y[2];
        if(x[3] * y[1] == y[3] * x[1]){
            cout << "YES" << endl;
        }else{
            cout << "NO" << endl;
        }
    }
     
    return 0;
}
