Domain and Range of a Function From a Graph

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:

Transformations of Functions:

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How To Find The Range of a Function:

Domain and Range - More Examples:

Domain and Range From a Graph:

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Domain and Range - Radical Functions:

Domain of Logarithmic Functions:

Domain and Range - Piecewise Functions:

Domain and Range - Inverse Functions:

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SAT Math Test Prep:

ACT Math Test Prep:

Final Exams and Video Playlists:

Full-Length Math & Science Videos:

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