#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>
#include <cstdlib>
#include <ctime>
#include <cstdio>
#include <functional>
#include <complex>
using namespace std;
int main() {
	double x[4],y[4];
	int n;
	cin >> n;
	for (int i = 0;i < n;i++) {
		for (int j = 0;j < 4;j++) {
				cin >> x[j] >> y[j];
		}
		double X1, Y1, X2, Y2;
		X1 = x[1] - x[0];
		X2 = x[3] - x[1];
		Y1 = y[1] - y[0];
		Y2 = y[3] - y[2];
		if (X1*Y2 - X2*Y1==0.0) {
			cout << "YES" << endl;
		}
		else cout << "NO" << endl;
	}
}