Q. 234.3( 6 Votes )
Find the equation of a line perpendicular to the line 
and at a distance of 3 units from the origin.
Answer :
Given:
Line 
and distance of 3 units from the origin.
To find:
The equation of a line perpendicular to the line 
and at a distance of 3 units from the origin.
Explanation:
The line perpendicular to 
is 
It is given that the line 
is at a distance of 3 units from the origin.
⇒ λ = ± 6
Substituting the value of λ,
We get 
,
Hence, equation of the required line is 
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