This precalculus video tutorial explains how to find the domain and range of a function given its graph in interval notation. The domain represents all of the x values in the function and the range represents all of the y values. You should use parentheses for open circles and infinity symbols but you should brackets for closed circles. This video contains plenty of examples and practice problems of finding the domain and range of a graph. Functions and Graphs Practice Test: https://www.youtube.com/watch?v=kvU9sOzT2mk Transformations of Functions: https://www.youtube.com/watch?v=Tmdrjs9xufc ____________________________________________ How To Find The Range of a Function: https://www.youtube.com/watch?v=Si2vmzUWfJE Domain and Range - More Examples: https://www.youtube.com/watch?v=KyOQhC8ctxc Domain and Range From a Graph: https://www.youtube.com/watch?v=KirGQOwjBVI ____________________________________________ Domain and Range - Radical Functions: https://www.youtube.com/watch?v=VM3iMj0BwLE Domain of Logarithmic Functions: https://www.youtube.com/watch?v=WfgYJy035k0 Domain and Range - Piecewise Functions: https://www.youtube.com/watch?v=0ZoSxPg6JSQ Domain and Range - Inverse Functions: https://www.youtube.com/watch?v=wP4JjdFbCkY _____________________________________________ SAT Math Test Prep: https://www.youtube.com/watch?v=fTGuTEQCsZY ACT Math Test Prep: https://www.youtube.com/watch?v=SsA7rZ8kczM Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Math & Science Videos: https://www.patreon.com/mathsciencetutor/collections