Functions Question 312
Question: If $ f(x)=|x-b|, $ then function
[AI CBSE 1984]
Options:
A) Is continuous at $ x=1 $
B) Is continuous at $ x=b $
C) Is discontinuous at $ x=b $
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
Obviously $ \underset{x\to b}{\mathop{\lim }}f(x)=f(b)=0 $ .