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title: What Is the Range of a Function
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## What Is the Range of a Function
The range of a function is the complete set of all possible resulting values of the dependent variable, after you substitute the domain. In other words, the range is the resulting y-values you get after substituting all the possible x-values.
For example, for y = sqrt(x + 2), the range of this function is y >= 0.
#### More Information:
Domain and Range of a Function