# Logarithms - Change of Base Rule & Applications Part 1

Taught by muchomath
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7724 views | 4 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on logarithms, Professor Perez teaches the change of base formula and its applications. Logarithms can be calculated with different bases using the change of base rule, which allows you to rewrite a quotient of logarithms with the same base. The rule can be applied using different bases, such as base 10 or base e, although some calculations can be done without a calculator. The lesson includes several practice problems and word problems to help you apply the rule.

Lesson Description:

Applications of logarithms and the change of base rule.

Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.

• What is the change of base rule or formula for logarithms?
• How do you take logarithms using a calculator?
• How do you take log base 8 of 16?
• #### Staff Review

• Currently 4.0/5 Stars.
In this video, you finally get to take some logarithms using a calculator. Also, you will learn how to use the change of base rule for logs. This formula or rule is very useful, especially when using a calculator. A very interesting and fun video.
• #### DK Arya

• Currently 5.0/5 Stars.
It makes logarithm so easy to understand,i like it.Thanks!
• #### hoyoung

• Currently 4.0/5 Stars.
Very easy explanations!