Q. The distance between the parallel lines $y = x + a,\ y = x + b$ is
A) $\frac{|b - a|}{\sqrt{2}}$
B) $|a - b|$
C) $|a + b|$
D) $\frac{|b + a|}{\sqrt{2}}$
Explanation
(a)
$Required\ distance = \frac{|b - a|}{\sqrt{1^{2} + 1^{2}}} = \frac{|b - a|}{\sqrt{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.