AllExperts > Experts 
Search      

Advanced Math

Volunteer
Answers to thousands of questions
 Home · More Questions · Answer Library  · Encyclopedia ·
More Advanced Math Answers
Question Library

Ask a question about Advanced Math
Volunteer
Experts of the Month
Expert Login

Awards

About Us
Tell friends
Link to Us
Disclaimer

 
 
 
 
About Paul Klarreich
Expertise
I can answer questions in basic to advanced algebra (theory of equations, complex numbers), precalculus (functions, graphs, exponential, logarithmic, and trigonometric functions and identities), basic probability, and finite mathematics, including mathematical induction. I can also try (but not guarantee) to answer questions on Abstract Algebra -- groups, rings, etc. and Analysis -- sequences, limits, continuity. I won't understand specialized engineering or business jargon.

Experience
I taught at a two-year college for 25 years, including all subjects from algebra to third-semester calculus.

 
   

You are here:  Experts > Science > Mathematics > Advanced Math > Inverses of functions.

Topic: Advanced Math



Expert: Paul Klarreich
Date: 5/8/2008
Subject: Inverses of functions.

Question
How would I go about answering this question, "Give an example of an exponential function. Find this exponential function's inverse which will be a logarithmic function. Plot the graph of both the functions and post to the discussion forum. Discuss these functions and their graphs with your classmates.

Answer
Questioner:   Iyana
Category:  Advanced Math
Private:  No
 
Subject:  Advanced Algebra

Hi, Iyana,

Question:  How would I go about answering this question, "Give an example of an exponential function.

>> You would tell everyone the definition.  Then you would write:

y = e^x

as an obvious example.



2.Find this exponential function's inverse which will be a logarithmic function.

>> Of course it would. It would be

y = ln(x)

Plot the graphs of both the functions

>> See attached. Of course you show the graph of y = x to display the symmetry.

and post to the discussion forum. Discuss these functions and their graphs with your classmates.

>> Sorry, that's all I can do.


Add to this Answer    Ask a Question



  Rate this Answer
   Was this answer helpful?
Not at allDefinitely              
   12345  

     
About Us | Advertise on This Site | User Agreement | Privacy Policy | Help
Copyright  © 2008 About, Inc. About and About.com are registered trademarks of About, Inc. The About logo is a trademark of About, Inc. All rights reserved.