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

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Evaluate log 32 8. Example 9 Continued Method 2 Change to base 2, because both 32 and 8 are powers <strong>of</strong> 2. log 32 8 = = 0.6 log 2 8 log 2 32 = 3 5 Use a calculator.
Evaluate log 9 27. Method 1 Change to base 10. log 9 27 = ≈ ≈ 1.5 Check for Understanding log27 log9 1.431 0.954 ≈ 1.5 Use a calculator. Divide.
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: Example 9: Changing the Base of a L
Page 23 and 24: Evaluate log 8 16. Method 2 Change
Page 25 and 26: Logarithmic scales are useful for m
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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