#include<cstdio>

using　namespace　std;

int　n;

double　x[4],　y[4];

int　main()
{
scanf("%d",&n);

for(int　c = 0; c < n; c++)
{
for(int i = 0; i < 4; i++)	
scanf("%lf%lf",&x[i],&y[i]);

puts((y[1]-y[0])/(x[1]-x[0])==(y[3]-y[2])/(x[3]-x[2])?"YES":"NO");

reurn 0;
}
}