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Instructional Video

Interpret the Rate of Change/Slope and Intercepts within the Context of Everyday Life

Curated and Reviewed by Lesson Planet

Rates of change can be a slippery slope. The resource makes the connection between the rate of change and the slope of a line. It continues on to provide examples of how to interpret the slope and the y-intercepts of linear equations that represent everyday contexts. The examples are converted into equations to highlight the slope and the intercept.

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CCSS: Designed
Concepts
slope, slope-intercept form, rate of change, piecewise functions, graphs interpreting, intercepts, y-intercepts, linear equations applications, linear equations writing, linear functions
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Additional Tags
math
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Instructional Ideas
  • Have class members come up with ideas that have a constant rate of change and provide an interpretation of its intercepts
Classroom Considerations
  • The aligned standard is not the best standard for this concept; a better match would be 8.F.B.4
  • The class should be familiar with calculating slopes of linear realtionships
  • This video is hosted on YouTube
Pros
  • Examples use different representations of the functions; verbal, tabular, and graphical
  • Reviews the slope-intercept form of linear equations
Cons
  • The last example is completely different than the previous examples
Common Core
HSF-IF.B.6