#include <iostream>
using namespace std;
int main() {
  int n;
  cin >> n;
  for(int i = 0; i < n; ++i) {
    double x1, x2, x3, x4;
    double y1, y2, y3, y4;
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3 >> x4 >> y4;
    double dx1 = x1 - x2;
    double dy1 = y1 - y2;
    double dx2 = x3 - x4;
    double dy2 = y3 - y4;
    if(dy1 / dx1 == dy2 / dx2) {
      cout << "YES" << endl;
    } else {
      cout << "NO" << endl;
    }
  }
  return 0;
}