Final answer:
Preparing for a vacation by going through a checklist is an example of the controlling function in management. The rate-determining step in airline travel refers to the stages that limit the speed of passenger processing.
Step-by-step explanation:
When you’re preparing to leave for vacation and checking whether you have everything you need, such as your pajamas, and toothbrush, and if everyone has visited the bathroom, you are engaging in the management function of controlling. This process involves ensuring that everything is in order for the trip, much like a manager would control operations to ensure that organizational goals are met. In the context of airline travel, the rate-determining step could refer to the various stages a traveler goes through, such as checking baggage, going through security, and boarding the plane, where the capacity to process passengers controls the overall speed of the process.