Lesson #45


Quote of the Day: 
"If we couldn't laugh, we would all go insane;
 If we weren't all crazy, we would go insane."
   -- Jimmy Buffett

Objectives:
The student will graph exponential functions.
The student will graph logarithmic functions.
The student will solve exponential equations.

1. Go over homework and collect it.

2. Show that y = ln(x) and y = e^x are inverse functions of each other.

3. Graph y = e^x and y = ln(x) on the same axes. Show symmetry.

4. Examples of log problems:
           



5. Click here for Reggae Song about the Log of the Quotient
 
 
6. Log jokes

   (A) Lumberjacks make good musicians because of their 
       natural logarithms.

   (B) The answer to the problem was "log(1+x)". A student
       copied the answer from the good student next to him, 
       but didn't want to make it obvious that he was 
       cheating, so he changed the answer slightly, to 
       "timber(1+x)."

7. Assignment:    
          p. 74 (28, 34, 38, 51)
Lesson #45 Graphs of Logarithmic and Exponential Functions

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