#include<vector>
#include<iostream>
#include<cstdio>
using namespace std;
double x1,y1,x2,y2,x3,y3,x4,y4;
int n;
int main()
{
  scanf("%d",&n);
  for(int i = 0;i < n;i++){
    double x1,y1,x2,y2,x3,y3,x4,y4;
    scanf("%lf%lf%lf%lf%lf%lf%lf%lf",&x1,&y1,&x2,&y2,&x3,&y3,&x4,&y4);
    if((y2-y1)/(x2-x1)==(y4-y3)/(x4-x3)) printf("YES\n");
    else printf("NO\n");
    
  }
  return 0;
}