7-4 Properties of Logarithms Warm Up Lesson Presentation Lesson ...

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Evaluate log 8 16. Method 1 Change to base 10. Log 8 16 = ≈ ≈ 1.3 log16 log8 1.204 0.903 Example 12 Use a calculator. Divide.
Logarithmic scales are useful for measuring quantities that have a very wide range of values, such as the intensity (loudness) of a sound or the energy released by an earthquake. Helpful Hint The Richter scale is logarithmic, so an increase of 1 corresponds to a release of 10 times as much energy.
Page 1 and 2: 7-4 Properties of Logarithms Warm U
Page 3 and 4: The logarithmic function for pH tha
Page 5 and 6: The property in the previous slide
Page 7 and 8: Express as a single logarithm. Simp
Page 9 and 10: The property above can also be used
Page 11 and 12: Express log 7 343 - log 7 7 as a si
Page 13 and 14: Example 5: Simplifying Logarithms w
Page 15 and 16: Exponential and logarithmic operati
Page 17 and 18: a. Simplify log10 0.9 Check for und
Page 19 and 20: Example 9: Changing the Base of a L
Page 21 and 22: Evaluate log 9 27. Method 1 Change
Page 23: Evaluate log 8 16. Method 2 Change
Page 27 and 28: E 13.95 = log 10 Example 13 Conti
Page 29 and 30: Example 13 Continued Substitute 6.9

7-4 Properties of Logarithms Warm Up Lesson Presentation Lesson ...

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