Table of Contents

## How do I find the domain and excluded values of a rational function?

The domain of a rational function consists of all the real numbers x except those for **which the denominator is 0 . To find these x values to be excluded from the domain of a rational function, equate the denominator to zero and solve for x .**

## How do you write domain with excluded values?

Since polynomials are defined everywhere, the domain of a rational function is the set of all numbers except the zeros of the denominator. **f(x) x / (x – 3). The denominator has only one zero, x 3. So the domain of f is the set of all numbers other than 3.**

## How do you find the excluded values of a rational function?

To find the excluded value in the domain of the function, **equate the denominator to zero and solve for x . So, the domain of the function is set of real numbers except u22123 . The range of the function is same as the domain of the inverse function.**

## How do you find the excluded domain?

Finding Excluded Values of Rational Expressions Factor the denominator of the rational expression. **Find the value that makes each factor equal zero. These are excluded values of the domain of the rational expression.**

## What are considered excluded values from the domain?

Steps for Simplifying a Rational Expression Determine the domain. The excluded values are **those values for the variable that result in the expression having a denominator of 0**

## How do you write domain and range?

Note that the domain and range are always written from **smaller to larger values, or from left to right for domain, and from the bottom of the graph to the top of the graph for range.**

## How do you find the excluded values of a rational expression?

Finding Excluded Values of Rational Expressions Factor the denominator of the rational expression. **Find the value that makes each factor equal zero. These are excluded values of the domain of the rational expression.**

## How can you determine the excluded values in a product or quotient of two rational expressions?

a product or quotient of two rational expressions? You can multiply and divide rational expressions in much the same way that you multiply and divide fractions. **Values that make the denominator of an expression zero are excluded values.**