\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Consider the following calculation program:
  1. Choose a number.
  2. Add 4 to the chosen number.
  3. Divide the result by the chosen number.
Let \(x\) be the number chosen initially. Determine the function \(f\) that corresponds to the result obtained with this program.
Choose one answer: