Domain of a Square Root Function & Rational Functions – Precalculus

This precalculus video tutorial explains how to find the domain of a square root function. It also contains examples and practice problems showing you how to write the domain of a rational function using interval notation. This video is useful for students taking algebra 2 or college algebra.

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Here is a list of topics:
1. Square Root Functions – Domain
2. Domain of Cube Root Functions
3. Writing the Domain of a Rational Function Using Interval Notation
4. Plotting Solutions of a Number Line & Interval Notation
5. Radical Function In Numerator vs Denominator
6. Open vs Closed Circles – Brackets & Parentheses
7. Multiple or Two Square Root Functions – Addition, Subtraction and Division
8. Factoring Quadratic Expressions Inside a Square Root Function
9. Union & Infinity
10. Square Root and Rational Function Combined

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