#include <iostream>
using namespace std;
int main() {
  int n;
  double x1, y1, x2, y2, x3, y3, x4, y4, a, b, c, d;
  cin >> n;
  while (n--) {
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3 >> x4 >> y4;
    a = x2 - x1, b = x4 - x3, c = y2 - y1, d = y4 - y3;
    if ((a == 0 && b == 0 && c != 0 && d != 0) || c / a == d / b) {
      cout << "YES" << endl;
    } else {
      cout << "NO" << endl;
    }
  }
  return 0;
}