Combining Functions: Adding and Subtracting Graphs

This video tutorial teaches how to combine the graphs of two functions by adding and subtracting them. It explains the process of creating new functions through these operations and addresses common misunderstandings, such as confusing 'nothing' with zero. The tutorial provides examples of adding and subtracting functions using Y coordinates and key X values, respectively. It also discusses the domain of combined functions, emphasizing the intersection of the domains of the original functions.

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