We add numbers, so why not functions? A math video explains the process of combining functions using addition, subtraction, multiplication, and division. The instructor then finds the domain for each new function. 

Concepts

functions, combinations

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Additional Tags

math

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Instructional Ideas

• Assign the video as homework; ask learners to complete problems the following day
• Include different types of functions in problems for guided practice

Classroom Considerations

• Classroom must have Internet access to show a YouTube video
• The video is a continuation of a function review series composed of 29 lessons

• This video is hosted on YouTube

Pros

• Instructor uses clear and thorough explanations

Cons

• Does not include real-life examples, and the example uses only polynomial functions

Common Core

HSF-BF.A.1.b