#include<iostream>
using namespace std;

int main(){
	int num;
	double sx1,sy1,sx2,sy2;
	double ex1,ey1,ex2,ey2;
	cin>>num;
	for(int i=0;i<num;i++){
		cin>>sx1>>sy1>>sx2>>sy2>>ex1>>ey1>>ex2>>ey2;
		if( (sy2-sy1)/(sx2-sx1) == (ey2-ey1)/(ex2-ex1) ){
			cout<<"YES"<<endl;
		}else{ 
			cout<<"NO"<<endl;
		}

	}

}