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Difference quotients are easy ... just subtract and divide. Viewers watch an instructional video to learn how to determine the difference quotient of a linear function. The example covers the function f(x) = 2x - 5.
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Instructional Ideas
- Use the video as part of an intervention strategy for pupils struggling with the difference quotient
Classroom Considerations
- There are additional videos for Example 2 and Example 3, but they cover quadratic functions
- Learners must be able to evaluate formulas involving function notation
- This video is hosted on YouTube
Pros
- Completely explains each step of the process
- Organized presentation aids with understanding
Cons
- None