#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"
);

	

}
}