Khan Academy
Khan Academy: Solve Exponential Equations Using Logarithms: Base 10 and Base E
Solve exponential equations that have 10 or e at the base of the exponential term. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas Instruments
Texas Instruments: Exponential and Logarithmic Equations
This problem set contains questions about exponential and logarithmic equations for base e, base 10, and any base b. Problems range from simple manipulation to applications, including graphical transformations. Solutions and explanations...
University of Saskatchewan (Canada)
University of Saskatchewan: Exponents and Exponential Functions
This site reviews the basic properties of exponents, and explains rational exponents and exponential functions, including those with base "e." Provides examples and lots of exercises.
Khan Academy
Khan Academy: Algebra Ii: Solve Exponential Equations Using Logarithms
Solve exponential equations that have 2 or other numbers at the base of the exponential term. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Richland Community College
Richland Community College: Exponential Functions and Their Graphs
The site explains exponential functions and characteristics of their graphs.
University of Virginia
U of Virgina: The Number E and the Exponential Function
This site provides an explaination of the number e with equations and examples.
Khan Academy
Khan Academy: Algebra I: Linear vs. Exponential Growth: From Data
Given a table with values of two quantities over time, determine whether the quantities grow linearly or exponentially. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
CK-12 Foundation
Ck 12: Algebra Ii: 3.9 the Transcendental Number E and Natural Log
This section introduces the transcendental number e which is a special number that is considered a natural base. In addition to exploring how to simplify and solve equations with e, this section also investigates how it can be used to...
Texas Instruments
Texas Instruments: What Is the Number "E"?
In this activity, students explore the fundamental theorem of calculus. They apply this theorem to understand the number "e" - the base of the natural logarithm. They also use integration and natural logarithmic function to solve a...
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.
University of Illinois
University of Illinois Urbana Champaign: Chickscope Egg Math: Embryo Calculus
This interesting and interactive site offers information and activities on exponential functions, tangents and slopes, and "The number e."
Other
Humboldt State University: Natural Logarithm
Wonderful natural logarithm site from the Humboldt State University with example problems.