Question
Quantitative Aptitude Question on Lines and Angles
If the lines 7x+6y+9=0 and ax+14y+8=0 are perpendicular to each other, find the value of
A
12
B
-12
C
6
D
-6
E
None of these
Answer
-12
Explanation
Solution
The correct option is (B): -12.
If the lines 7x+6y+9=0 and ax+14y+8=0 are perpendicular to each other, find the value of
12
-12
6
-6
None of these
-12
The correct option is (B): -12.