#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"
);
	
}
 }