#include <iostream>
using namespace std;
int main() {
  int n;
  cin >> n;
  for (int i = 0; i < n; i++) {
    double x1, y1, x2, y2, x3, y3, x4, y4;
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3 >> x4 >> y4;
    cout << (((y2 - y1) / (x2 - x1) == (y4 - y3) / (x4 - x3)) ? "YES" : "NO") << endl;
  }
}