#include<bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(n);i++)
#define loop(i,x,n) for(int i=(x);i<(n);i++)
#define all(x) (x).begin(),(x).end()
#define pb push_back
#define mp make_pair
#define fir first
#define sec second
#define ub upper_bound
#define lb lower_bound
#define int long long
using namespace std;
const int MOD=1000000007;
const int INF=1000000009;


signed main(){
  int n;
  cin>>n;
  rep(i,n){
    double a,b,c,d,e,f,g,h;
    cin>>a>>b>>c>>d>>e>>f>>g>>h;
    double p=(b-d)*(e-g);
    double q=(f-h)*(a-c);
    if(p-q==0)cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
  }
  return 0;
}