Find the graph of the function f(x)=ax where 0<a<1.
Here, f(x)=ax and 0<a<1
The first thing to see here is that since a>0 whatever x we take ax will always be greater than 0.
Let us see with an example what happens to the f(x) as x increases
For a=0.5
(0.5)1=0.5
(0.5)2=0.25
(0.5)3=0.125
So, the values of f(x) are decreasing as x is increasing. The same trend follows for any a between 0 and 1.
So we observe that B is the correct option.