#include <bits/stdc++.h>

using namespace std;

#define FOR(i, j, k) for(int i = j; i < k; ++i)
#define rep(i, j) FOR(i, 0, j)
#define repr(i, j) for(int i = j; i >= 0; --i)
#define INF (1 << 30)
#define MOD 1e9 + 7

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> P;

int main() {
	int N;
	scanf("%d", &N);
	rep(i, N) {
		double x1, y1, x2, y2, x3, y3, x4, y4;
		scanf("%lf %lf %lf %lf %lf %lf %lf %lf", &x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4);
		double AB = (y2 - y1) / (x2 - x1);
		double CD = (y4 - y3) / (x4 - x3);
		printf("%s\n", (AB == CD) ? "YES" : "NO");
	}
	return 0;
}