Composite Functions and Their Domains

What do musicians and mathematicians have in common? Compositions! Learners review function composition in the previous video in a series of 29, and expand that review to include the domain of the composition. The instructor uses rational expressions to create the compositions.

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Instructional Ideas

  • Present problems for pupils to complete prior to watching the video; ask them to use the video to check their work
Classroom Considerations

  • Requires a strong understanding of simplifying rational expressions

  • The video uses color to help explain the substitution used to create the composition
  • Presents a complete explanation including possible situation

  • Does not include an explanation of rules