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Determining domain and range: How anyone can learn

Determining Domain and Range

There are many ways that we can represent a relation to determine if it is a function or not. Such examples we will explore are a set of points, mapping, equations, and graphs. In each case the definition of a function is the same. Every input value uniquely maps to exactly one out put value. Here are a couple of examples

Determining If A Graph Represents A Function Or Not

Determining If Mapping Represents A Function Or Not

Determining If A Set Of Points Represents a Function Or Not


Once we have determined if our relation represents a function or not we can determine the domain and range of the functions. Remember the domain is the set of all input values that make up the function and Range is all of the output values that make up a function.

Determining The Domain and Range From A Graph

Determining The Domain and Range From Mapping

Determining The Domain and Range From A Set of Points

Determining The Domain From an Equation

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