Answer:
Given a function f(x); the graph of a function f(x)+a is a translation of a graph 'a' units downwards or upwards depending whether this 'a' is negative or positive.
if a>0 then the translation is a units upwards.
if a<0 then the translation is a units downwards.
Here we have to find the graph of a function f(x)+1 for a given function f(x)=2 x.
so a graph of 2 x+1 is a shifting of a graph f(x)=2 x+1 '1' units upwards.
