#include<iostream>
using namespace std;

int main(){
	int n;
	double x[4], y[4];
	cin >> n;
	while (n-- != 0){
		for (int i = 0; i < 4; i++)
			cin >> x[i] >> y[i];
		if ((x[0] - x[1]) * (y[2] - y[3]) == (x[2] - x[3]) * (y[0] - y[1]))
			cout << "YES" << endl;
		else if (x[0] == x[1] && x[2] == x[3])
			cout << "YES" << endl;
		else if (y[0] == y[1] && y[2] == y[3])
			cout << "YES" << endl;
		else
			cout << "NO" << endl;
	}
	return 0;
}