Limits and Continuity

Lesson 3

Objective

Sketch a slope graph from a linear piecewise function.

Criteria for Success

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  1. Identify the slope for each piece of a continuous linear piecewise function.
  2. Define the variables of a slope graph where $$x$$ is the input and $$y$$ is the rate of change not the value of the function. 
  3. Describe why the endpoints of the slope graph of a linear piecewise function are exclusive, that is, they are not included in the sub domain of the piece of the slope graph.

Tips for Teachers

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This lesson is aligned to the Learning Objectives and Essential Knowledge described in the College Board's AP Calculus AB and AP Calculus BC Course and Exam Description:

LO2.1A

LO2.1B (approaching)

Anchor Problems

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Problem 1

Sketch a graph that shows the slope over each interval.

Guiding Questions

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References

GeoGebra Derivative of a linear piecewise function

Derivative of a linear piecewise function by cconrad is made available by GeoGebra under the CC BY-NC-SA 3.0 license. Copyright © International GeoGebra Institute, 2013. Accessed June 12, 2018, 11:52 a.m..

Problem 2

Below is a sketch of a slope graph. Draw the sketch of the piecewise function.

Guiding Questions

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Problem Set

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The following resources include problems and activities aligned to the objective of the lesson that can be used to create your own problem set.

  • Use this lesson to review the previous few lessons and incorporate a variety of practice. 
  • Give a piecewise function of the first derivative. Ask students to draw the graph of the first derivative and the original function. 
  • Find the slope graph from equations, without the graph. 

Target Task

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Sketch the slope graph of $${{g(x)}}$$. On which intervals is $${{g(x)}}$$ increasing and decreasing?