#include <iostream>

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define REP(i,m,n) for (int i=m;i<(int)(n);i++)

const int INF = 10000000;
using namespace std;
typedef long long  ll;
const int MAX = 10000;

/** Problem0021 : Parallelism **/
int main()
{
	int n;
	cin >> n;
	rep(k, n) {
		double x1, y1, x2, y2, x3, y3, x4, y4;
		cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3 >> x4 >> y4;
		
		if ((y2 - y1)/(x2 - x1) == (y4 - y3)/(x4 - x3))
			cout << "YES" << endl;
		else
			cout << "NO" << endl;
	}
	return 0;
}