Logarithms 3
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Lesson Summary:
In this lesson on logarithms, the focus is on graphing logarithmic functions. The first step is to rewrite the function as y = log base 2 of x, and then rewrite it as an exponential function, which is 2 to the y = x. By making a table of ordered pairs and plotting them on a graph, the unique shape of a logarithmic function can be seen. Additionally, by understanding the basic shapes of both exponential and logarithmic functions, it becomes easier to graph more complex functions.
Lesson Description:
In this video, we graph logarithmic equations.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you graph logarithmic equations?
- How do you graph f(x) = log of x base 2?
- How do you make a table to graph a logarithmic function?
- What does the graph of a logarithmic function look like?
- What do the inverse functions y = 2^x and y = log base 2 of x look like on the same graph?
- How are exponential graphs and logarithmic graphs similar and different?
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Staff Review
This lesson explains how to graph logarithmic functions. Make sure you understand the concepts explained in the first two parts of this series before attempting this lesson. This is a great tutorial for learning to graph logarithmic functions. The tables used to graph are explained in great detail. Exponential graphs and logarithmic graphs are compared and explained in this lesson.
