## Reflection: Intervention and Extension Exponential Decay Functions - Section 4: Homework

The graph of an exponential with a negative base provides an interesting conversation.   At first glance, students want to say that it will be reflected.  Once they start investigating, they notice that this isn’t what happens.  My goal with the extension problem #10 was that students identified that this isn’t a continuous function fitting the model that we have been looking at.  Here is a sample of the Assignments that I received.  This student predicted a reflection but found that the many points would have unreal answers.  To get the full benefits of this problem, a short class discussion is necessary the next day.  This helps those students who struggled with this problem.

Intervention and Extension: Exploring Unusual Functions

# Exponential Decay Functions

Unit 8: Exponential and Logarithmic Functions
Lesson 6 of 15

## Big Idea: Let's get rid of some zombies! And do some graphing as well.

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Subject(s):
Math, exponential function, Algebra, Algebra 2, exponential decay, exponential modeling, master teacher project
51 minutes

### Amelia Jamison

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