This algebra 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 https://youtu.be/BH-Rmrd5fB0
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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