Texas Instruments
Texas Instruments: Logarithmic Functions
These questions test knowledge of the definition of a logarithm, domain and range of logarithmic functions, and properties of logarithms. Questions are true/false and multiple-choice; solutions are provided.
CK-12 Foundation
Ck 12: Algebra Ii: Analysis: Graphs of Logarithmic Functions
[Free Registration/Login may be required to access all resource tools.] This lesson covers graphing logarithmic functions. Students examine guided notes, review guided practice and attempt practice problems.
Math Medics
S.o.s. Math:applications of Exponential and Logarithmic Functions: Interest Rate
A set of examples and exercises that cover interest rate problems and how to solve them using exponents and logarithms.
Math Medics
S.o.s. Math: Exponential and Logarithmic Functions / Amortization
A set of examples and exercises that cover how to solve mortgage problems by using exponents and logarithms.
University of Guelph
University of Guelph: Logarithms
Exceptional page explaining almost anything you might want to know about logarithms.
Math Medics
S.o.s. Math: Graphs of Exponential & Logarithmic Function
This lesson gives brief description of dependent and independent variables and how they relate to the exponential and logarithmic functions.
University of Utah
University of Utah: What on Earth Is a Logarithm?
This site explains "What on Earth is a Logarithm?" It has examples and a logarithm calculator, as well as links to related topics.
Shodor Education Foundation
Shodor: Logarithms
This site explains Logarithms. The site has examples the student can examine and exmples the student can work and check online.
Windstream
Ojk's Precalculus Study Page: Change of Base Formula
An introduction to logarithms with bases other than 10 and e, and how to work with them when solving equations. This tutorial includes lots of examples and exercises with solutions.