Q. If the point $(a,\ a)$ falls between the lines $|x + y| = 4$, then
A) $|a| = 2$
B) $|a| = 3$
C) $|a| < 2$
D) $|a| < 3$
Explanation
(a)
Given, $|x + y| = 4$
If point $(a,a)$ lies between the lines, then
$|a + a| = 4\ \ \Rightarrow \ |a| = 2$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.