class Vec2:
    def __init__(self, x, y):
        self.x = x
        self.y = y

    def __repr__(self):
        return f'({self.x}, {self.y})'

    def dot(self, o):
        return self.x * o.x + self.y * o.y

    def cross(self, o):
        return self.x * o.y - self.y * o.x

    def normalized(self):
        m = self.mag()
        if m != 0 and m != 1:
            return Vec2(self.x / m, self.y / m)
        return self

    def magsq(self):
        return self.x * self.x + self.y * self.y

    def mag(self):
        return sqrt(self.magsq())

    def rotate(self, rad):
        x = self.x * cos(rad) - self.y * sin(rad)
        y = self.x * sin(rad) + self.y * cos(rad)
        return Vec2(x, y)

    def rot90ccw(self):
        return Vec2(-self.y, self.x)

    def distance(self, other) -> float:
        return (self - other).mag()

    def __eq__(self, other):
        return self.x == other.x and self.y == other.y

    def __ne__(self, other):
        return not self.__eq__(other)

    def __lt__(self, other):
        if self.x == other.x:
            return self.y < other.y
        return self.x < other.x

    def __add__(self, other):
        return Vec2(self.x + other.x, self.y + other.y)

    def __sub__(self, other):
        return Vec2(self.x - other.x, self.y - other.y)

    def __mul__(self, d):
        return Vec2(self.x * d, self.y * d)

    def __rmul__(self, d):
        return self.__mul__(d)

    def __truediv__(self, d):
        return Vec2(self.x / d, self.y / d)

    def __neg__(self):
        return Vec2(-self.x, -self.y)

    def __iadd__(self, other):
        self.x += other.x
        self.y += other.y
        return self

    def __isub__(self, other):
        self.x -= other.x
        self.y -= other.y
        return self


def solve():
    AX, AY, BX, BY, CX, CY = map(int, input().split())
    a = complex(AX, AY)
    b = complex(BX, BY)
    ab = a * b

    s = Vec2(ab.real, ab.imag)
    t = Vec2(CX, CY)
    return s.cross(t) == 0


T = int(input())
for _ in range(T):
    ans = solve()
    if ans:
        print('Yes')
    else:
        print('No')