Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The equation 
represents a pair of perpendicular lines. Then the value of ‘ a ’ is
A
B
– 19
C
– 12
D
12
Text Solution
Verified by ExpertsThe correct answer is:
C
Comparing the given equation with standard equation, we get 
and 
. We also know that for perpendicular lines, coefficient of 
+ coefficient of 
or 
. Therefore 
or 
.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Angle between the lines represented by the equation is
If the acute angles between the pairs of lines and be and respectively, then
The angle between the lines represented by the equation will be , if
The lines represented by the equation
are
Acute angle between the lines represented by
is
Angles made by the lines represented by the equation with axis are