We are given : Reciprocal parent function.
We know reciprocal parent function is given by [tex]f(x)=\frac{1}{x}[/tex]
It is said transformation of 4 units right.
We know function rule
To shift a function f(x) to left or right, use the rule
g(x)=f(x-h), where h is a positive number.
It's 4 unit right so, we need to substitute x=(x-4) in the reciprocal parent function.
We get transformed function
[tex]f(x)=\frac{1}{x-4}[/tex].