Writing an Exponential Function from its Graph

Grow an equation for the exponential graph. Given a graph of an exponential function, class members write the equation of the function provided. The graph labels two points on the graph: the y-intercept and the point where x is one.

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CCSS: Designed
Instructional Ideas

  • Provide a mini-lesson on finding the growth rate given two points
  • Differentiate the assessment by not telling the more advanced pupils the function is exponential
Classroom Considerations

  • Individuals should know how to find the initial value from a graph
Pros

  • Contains descriptions of common misconceptions
  • Provides teacher questions to use to gain understanding of students' thinking
Cons

  • None
Common Core