#include<iostream>
#include<cmath>
using namespace std;
int main() {
  int n;
  cin>>n;
  for(int i=0;i<n;i++){ 
    double x[4],y[4];
    for(int j=0;j<4;j++)
      cin>>x[j]>>y[j];
  if(x[0]==x[1] && x[2]==x[3])
      cout<<"YES\n";
  else if( (y[0]-y[1])/(x[0]-x[1]) == (y[2]-y[3])/(x[2]-x[3]) ) 
      cout<<"YES\n";
    else
      cout<<"NO\n";
  }
  return 0;
}
