#include <iostream>
#include <stdio.h>
#define REP(i,n) for(int i = 0; i < (n); ++i)
using namespace std;
 
int main(){
    int n;
    cin >> n;
    double x1,y1,x2,y2,x3,y3,x4,y4;
    REP(i,n){
        cin>>x1>>y1>>x2>>y2>>x3>>y3>>x4>>y4;
        if(x1==x2&&x3==x4)printf("YES\n");
        else{
            if((y1-y2)/(x1-x2)==(y3-y4)/(x3-x4))printf("YES\n");
            else printf("NO\n");
        }
    }
    return 0;
}