#include <iostream>
using namespace std;

int main() {
	int n;
	for (cin >> n; n; n--) {
		double x1, y1, x2, y2, x3, y3, x4, y4;
		cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3 >> x4 >> y4;
		cout << (((y1 - y2) / (x1 - x2) == (y3 - y4) / (x3 - x4)) ? "YES" : "NO") << endl;
	}
	return 0;
}