Question
The locus represented by $xy + yz = 0$ is
- (a) a pair of perpendicular lines
- (b) a pair of parallel lines
- (c) a pair of parallel planes
- (d) a pair of perpendicular planes ✓ Correct
The locus represented by $xy + yz = 0$ is
It is given that, $xy + yz = 0$
$\Rightarrow$ $xy = - yz$
So, a pair of perpendicular planes.
NCERT & Exemplar solution for CBSE Class 12 Mathematics, Three Dimensional Geometry. Curated by Sachin Sharma. Free for all students.