Question: If 
and 
then the minimum value of 
is:
a) 2
b) 
C) 10
d) 
Approach: We need to understand how to open Absolute value here. The first equation is relatively straightforward. But for the other one, we need to make 2 conditions based on the value of z. Not only that, but we also need to cross-verify whether the final values of z fall in the same category or not.