import os
import sys
from io import BytesIO, IOBase

BUFSIZE = 8192


class FastIO(IOBase):
	newlines = 0
	
	def __init__(self, file):
		self._fd = file.fileno()
		self.buffer = BytesIO()
		self.writable = "x" in file.mode or "r" not in file.mode
		self.write = self.buffer.write if self.writable else None
	
	def read(self):
		while True:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			if not b:
				break
			ptr = self.buffer.tell()
			self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
		self.newlines = 0
		return self.buffer.read()
	
	def readline(self):
		while self.newlines == 0:
			b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
			self.newlines = b.count(b"\n")+(not b)
			ptr = self.buffer.tell()
			self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
		self.newlines -= 1
		return self.buffer.readline()
	
	def flush(self):
		if self.writable:
			os.write(self._fd, self.buffer.getvalue())
			self.buffer.truncate(0), self.buffer.seek(0)


class IOWrapper(IOBase):
	def __init__(self, file):
		self.buffer = FastIO(file)
		self.flush = self.buffer.flush
		self.writable = self.buffer.writable
		self.write = lambda s:self.buffer.write(s.encode("ascii"))
		self.read = lambda:self.buffer.read().decode("ascii")
		self.readline = lambda:self.buffer.readline().decode("ascii")


sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda:sys.stdin.readline().rstrip("\r\n")

def dist(x1,y1,x2,y2):
	return (x1-x2)**2+(y1-y2)**2

t=int(input())
for _ in range(t):
	x1,y1,x2,y2,X1,Y1,X2,Y2=map(int,input().split())
	if dist(x1,y1,x2,y2)<dist(X1,Y1,X2,Y2):
		print("No")
	elif dist(x1,y1,x2,y2)==dist(X1,Y1,X2,Y2):
		if [x1,y1,x2,y2]==[X1,Y1,X2,Y2]:
			print("Yes")
		else:
			print("No")
	else:
		ssi = y2-y1
		sbo = x2-x1
		tsi = Y2-Y1
		tbo = X2-X1
		if ssi==0:
			assert(0)
			if tsi==0 and sbo*tbo>0:
				print("Yes")
			else:
				print("No")
		elif sbo==0:
			assert(0)
			if tbo==0 and ssi*tsi>0:
				print("Yes")
			else:
				print("No")
		else:
			if ssi*tbo==sbo*tsi:
				print("Yes")
			else:
				print("No")