# What Is A Domain In Math Example?

## What is a domain in math?

The domain of a function is the complete set of possible values of the independent variable. In plain English, this definition means: The domain is the set of all possible x-values which will make the function “work”, and will output real y-values.

## How do you find the domain?

For this type of function, the domain is all real numbers. A function with a fraction with a variable in the denominator. To find the domain of this type of function, set the bottom equal to zero and exclude the x value you find when you solve the equation. A function with a variable inside a radical sign.

## What is domain and range examples?

You can also talk about the domain of a relation , where one element in the domain may get mapped to more than one element in the range. Example 2: The domain is the set of x -coordinates, {0,1,2} , and the range is the set of y -coordinates, {7,8,9,10} .

## How do you write domain and range?

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Domain and Range – MathHelp.com – Algebra Help – YouTube