How to Find the Domain of a Function

This precalculus math tutorial explains how to find the domain of polynomial functions, rational functions, radical functions, square root functions, and functions involving fractions with square roots: square root in the numerator, square root in the denominator, square root both in the numerator and denominator and when the entire fraction is under the square root. Interval notation is used to write the domain. How to solve quadratic equations by factoring    • Solving Quadratic Equations by Factoring │...   How to solve quadratic inequalities    • Quadratic Inequalities│Algebra   how to find domain and range of a function, domain and range, domain and range of a function, find the domain of the function, finding domain of a function, functions, how to find domain , how to find the domain of a function, how to find the domain, find the domain, domain of a function, domain, function, interval notation, radicals, square roots, fractions, polynomial, algebra, algebra 2, precalculus, math tutor, gotutor, examples, problems, practice problems, how to find the domain of polynomial function, how to find the domain of rational function, how to find the domain of radical function, how to find the domain of functions involving fractions with square roots , 0:00 Main Concept 0:57 Domain of Polynomial Functions 1:29 Domain of Rational Functions 5:22 Domain of Radical Functions 10:48 Domain of Fractions with Radicals