ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
Homework Answers:
p. 504
8.
27
18. 1 or 4
10. ­1/3
20.
12. 4
34. 103 (about 1000 times)
14. ­2 or 4
100.3 (about 2 times)
16. no solution
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
Homework Quiz ­ no calculators.
1. Sketch a graph of . Give the domain, range, and end behavior for your graph. 2.
Solve .
3.
Write in exponential form.
4.
Evaluate
.
5.
Evaluate .
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
Thinking more about the graph of the log function ­ Graph the exponential function
y­intercept
two additional points
horizontal asymptote
Domain:
Range:
Now graph the inverse of the exponential function.
x­intercept
two additional points
vertical asymptote
domain:
range::
Can you solve this new equation for y using the properties you already know?
Think about what x and y represent ­ how does this relate to the idea of a logarithm as an exponent that we talked about yesterday?
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
Think again about the domain of a logarithmic function. How does the domain relate to the solutions of this equation?
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
More graphing ­ transformations
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
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ch 8.3 graphing logarithmic functions.notebook
February 13, 2013
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