ll@t;
rep(t){
	ll@(ax,ay,bx,by,cx,cy);
	if(ay==0&&by==0){
		wt(cy==0&&cx>0?"Yes":"No");
	}else{
		ll dx=ax*bx-ay*by;
		ll dy=ax*by+ay*bx;
		wt(cx*dy==cy*dx?"Yes":"No");
	}
}