Logarithms Section 3.7.

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Presentation transcript:

Logarithms Section 3.7

Laws of Logs

Logarithm of a product Example:

Match the statement with the log law.

Logarithm of a Power Example:

Solve for x: Check:

Check:

Solve for x: Write in exponential form Check

New Law of Logs Check

Logarithm of a Quotient Example:

Write as a single logarithm

If 10% of a certain radioactive material decays in 5 days. What is the half life of the material?

Don’t forget to check!!!

Homework: Page 176,Investigation 13 Page 178,Focus J Page 180 , #9,10,11,12,13, (Math 3205) only 15, Math 3205 only:Page 183, #24,25. Page 183, #27 *********very important Math 3205 only:Page 184, #29,30 Math 3205 only:Page 185, #32 Page 203, #33,34,35,36,37, Page 204, #38,39 Math 3205 only: Page 204,#40,43, Omit Focus K End of logs=--Now smile!!!!