#### What is the domain of a math function? The domain of a function is a set of x-values or numbers that you can put into any equation of the problem. That equation will be able to produce an output value that is y-value. Start by learning the basic fundamentals of this. In a variety of situations, you can find the domain of a function by using the following steps: 1) For a Polynomial Function - The domain will be all real numbers when there is no radicles or variables in the denominator. 2) Denominator with Variable - If denominator have variable, the bottom will be equal to zero. Also, you will remove the value of x while solving an equation. 3) Radical with Variable - Find the domain for this function, place the values in the radical sign to > 0. Then, you will find suitable values for x. 4) Use a Graph - Place all selected values on the graph to find the fittest value for x.

These worksheets explain how to find the domain and the range of a function. Your students will use these worksheets in order to learn how "one to one" and "onto" functions are distinguished from each other, as well as the definitions of ranges and domains. We look at how to find the complete set of value of the independent variable of a function this is called the domain of the function. We also look at how to find the complete set of resulting values of the dependent variables of a function this is referred to as the range of the function. We focus on the concept of one-to-one functions this is a function where each element of the range relates to only one element of the domain.