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Evaluating Logarithms

By Textbook Tactics

Introduction to logarithms, logarithms as a inverses of exponential functions, evaluating logarithms, the domain of logarithms, graphing logarithms, translating graphs of logarithms.If you enjoy this video,

Finding the Inverse of Log Function Pt I

By charlie Lindelof

Step by step instructions for finding the inverse of a logarithmic function. Then we graph the functions on a calculator to provide graphical proof

16 - Simplify Logarithms - Part 1 (Log Bases, Calculate Logarithms & More)

By Math and Science

Quality Math And Science Videos that feature step-by-step example problems!

Algebra Applications: Exponential Functions

By Media4Math

In this episode of Algebra Applications, students explore earthquakes using exponential models. In particular, students analyze the earthquake that struck the Sichuan Province in China in 2008, months before the Beijing Olympics. This dramatic, real-world example allows students to apply their understanding of exponential functions and their inverses, along with data analysis and periodic function analysis. Segments include: What is an earthquake? The basic definition of an exponential function is shown in the intensity function for an earthquake. Students analyze data and perform an exponential regression based on data from the Sichuan earthquake. What is the difference between earthquake intensity and magnitude? An exponential model describes the intensity of an earthquake, while a logarithmic model describes the magnitude of an earthquake. In the process students learn about the inverse of an exponential function. How is earthquake magnitude measured? An earthquake is an example of a seismic wave. A wave can be modeled with a trigonometric function. Using the TI-Nspire, students link the amplitude to an exponential function to analyze the dramatic increase in intensity resulting from minor changes to magnitude. Go to www.media4math.com for additional resources.