Section 5.6 Natural Logarithms.

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Presentation transcript:

Section 5.6 Natural Logarithms

Exponential Models with Base e Using a Model with Base e to Make a Prediction Example The BlackBerry® is a wireless handheld device. The numbers of BlackBerry subscribers are shown in the table for various years. Let f (t) be the number of BlackBerry subscribers (in millions) at t years since 2000. A possible equation of f is 1. Verify that f models the situation well. 2. Predict when there will be 100 million subscribers. Section 5.6 Slide 2

Draw a scattergram To predict, substitute 100 for f (t) Exponential Models with Base e Using a Model with Base e to Make a Prediction Solution Draw a scattergram To predict, substitute 100 for f (t) Section 5.6 Slide 3

The model predicts that there will be 100 million subscribers in 2010. Exponential Models with Base e Using a Model with Base e to Make a Prediction Solution Continued The model predicts that there will be 100 million subscribers in 2010. Section 5.6 Slide 4

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