Finding the Domain of a Function – 4 Complete Examples Using Interval Notation
In this video, I show how to find the domain of a function without graphing, using algebraic methods. We explore the two major restrictions when finding a function’s domain:
Avoiding zeros in the denominator of a fraction.
Ensuring there are no negative numbers under a square root (or any even-powered root) after simplifying.
Throughout the video, I walk you through 4 complete examples, demonstrating how to find the domain step by step. I also explain how to use interval notation to express the domain accurately. This is a must-watch for anyone studying functions or preparing for algebra or precalculus exams.
? Want to see how to find the domain and range using a graph? Check out this related video:
https://www.youtube.com/watch?v=ObEucyZX464
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