Question

What is Domain and Range of a Function?

Answer 1

Domain

• A function is a relation if and only if for every input value, there is only one output value.
• The set of input values is called a domain.
• The domain is the independent variable.

Range

• It is the set of values corresponding to the domain for a given function or relation.
• It is dependent on the domain.
• In a function, there will be only one range value corresponding to a domain value.
• The general form of a function is $y=f\left(x\right)$ where $x$ is the domain and $y$is the range