## Domain of a Rational Expression 1

Functions assign outputs to inputs. The domain of a function is the set of all possible inputs for the function. For example, the domain of f (x)=x² is all real numbers, and the domain of g (x)=1/x is all real numbers except for x=0. We can also define special functions whose

## How to find the domain of a rational equation

Let us first find the values that makes the denominator equal to zero x 3 - x = 0 Factor the expression on the left hand side of the equation x(x 2 - 1) = 0 x(x + 1)(x - 1) = 0 Solve the

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## Intro to rational expressions (article)

This algebra video tutorial explains how to find the domain of a function that contains radicals, fractions, and square roots in the denominator using interv

Math can be difficult, but with a little practice, it can be easy!

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