What is a domain, range, and function?

domain is area of territory owned or controlled by a ruler or government.

range is the upper and lower limits

function is an activity or purpose natural to or intended for a person thing.

Domain: A specific place / territory that is owned personally by the government or the ruler. This is usually know as a territory, kingdom, land, or empire.

Range: The area of high and low type limits (like a mountain/hill) on a specific scale. People use this word to be also know as a compass.

Function: An activity that is extended for a person or thing. This is know as duty as well.