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 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 (x-1)(x-2)=0 in thre dimensional space is represented by (A) a pair of straighat lines (B) a pair of parallel planes (C) a sphere (D) none of these

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

The equation x^2-x-2=0 in three dimensional space is reresented by (A) a pair of parlle planes (B) as pair of straigh lines (C) a pair of perpendicular planes (D) a set contasining two distinct points

In the given figure, name: all pairs of parallel lines

If A(-1, 0), B(1, 0) and C(3, 0) are three given points, then the locus of point D satisfying the relation DA^2 + DB^2 = 2DC^2 is (A) a straight line parallel to x-axis (B) a striaght line parallel to y-axis (C) a circle (D) none of these

The equation xy=0 in three dimensional space is represented by (A) a plane (B) two planes at righat angles (C) a pair of parallel planes (D) a pair of straighat lines

a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for

Look at the figure and name the following: A pair of parallel lines