The locus represented by `xy+yz=0` is a pair of

The locus represented by x y + yz=0 is

The locus of xy+yz=0 is (A) a pair of straighat lines (B) a pair of parallel lines (C) a pair of parallel planes (D) none of these

The point of intersection of the pair of lines represented by xy + 2x + 2y +4 = 0 is

The angle between the pair of lines represented by 2x^2-7xy+3y^2=0 is

The angle between the planes represented by 2x ^(2) - 6y ^(2) - 12 z^(2) + 18 yz + 2 zx + xy =0 is

The eqution xy+yz=0 represents (A) a pair of straighat lines (B) a pair of parallel lines (C) a pair of parallel planes (D) a pair of perpendicular planes

The equation xy+yz=0 represents (A) a pair of straight lines (B) a pair of parallel lines (C) a pair of parallel planes (D) a pair of perpendicular planes

The two planes represented by 12 x ^(2) - 2y ^(2) - 6z^(2) - 7 yz + 6zx - 2 xy =0 are

Which of the following equations represent pair of lines ? xy + x + y + 1 = 0