Question

The minimum value of f (x)= |x-1| + |x-2| is 1) 1 2) -1 3) 2 4) 3

Answer 1

f (x)=|x-1|+|x-2|
f (1 2)=|1-1|+|2-2|
f(1 2)=|0|+|0|
f (1 2)=0
f (x)is minimum at (1 2)

Answer 2

Given equation = f (x)=|x-1|+|x-2|

f (x)=|x-1|+|x-2|

f (1 2)=|1-1|+|2-2|

f(1 2)=|0|+|0|

f (1 2)=0

Answer = (A) 

(1 2)