#include<iostream>
#include<string>
using namespace std;
int main(){
	int n;
	double x[4],y[4];
	cin>>n;
	for(int h=0;h<n;h++){
	for(int i=0;i<4;i++)
		cin>>x[i]>>y[i];
	bool t=false;
	if(x[0]-x[1]==0&&x[2]-x[3]==0)
		t=true;
	else if(y[0]-y[1]==0&&y[2]-y[3]==0)
		t=true;
	else if(!(x[0]-x[1]==0||x[2]-x[3]==0||y[0]-y[1]==0||y[2]-y[3]==0)){
		if((y[1]-y[0])/(x[1]-x[0])==(y[3]-y[2])/(y[1]-y[0]))
			t=true;
	}
	if(t==true)
		cout<<"YES"<<endl;
	else
		cout<<"NO"<<endl;
	}
    return 0;
}