Question
Find the equation of a line parallel to x-axis and passing through the origin.
Find the equation of a line parallel to x-axis and passing through the origin.
.: The line passes through $(0,0,0)$ and is parallel to x-axis.
$\therefore$Its equations are $y = 0,z = 0 \Rightarrow \cfrac{x}{1} = \cfrac{y}{0} = \cfrac{z}{0}$
NCERT & Exemplar solution for CBSE Class 12 Mathematics, Three Dimensional Geometry. Curated by Sachin Sharma. Free for all students.