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Logarithms

Logarithms. What is a LOGARITHM?. A logarithm is another way to represent an exponent . Video. Switch answer and exponent. Drop the. Drop the base. Drop the. Try These- Rewrite as Logarithms. Log 3 81 = x. = 81 = x = 128. Can you solve for x?. Log 4 x = 5. Log x 128 = 7.

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Logarithms

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  1. Logarithms

  2. What is a LOGARITHM? • A logarithm is another way to represent an exponent. • Video

  3. Switch answer and exponent Drop the Drop the base Drop the

  4. Try These- Rewrite as Logarithms Log381 = x • = 81 • = x • = 128 Can you solve for x? Log4x = 5 Logx128 = 7

  5. Try These- Rewrite as Exponents • Log5x=2 • Log464=x • Logx49=2 Can you solve for x?

  6. Can you think of another irrational number that has its own symbol? Can you find e on your calculator? Pi π ~ 3.14

  7. Try These logx = 4 • = x • = 5 • log 1000 = 3 • ln 7 = x ln 5 = x = 1,000 = 7

  8. Assignment • Handout Circles worksheet. • Look at each exponential and logarithmic equation. • Shade each matching pair the same color or pattern. • Practice QUIZ

  9. 1.23 2.08

  10. 2

  11. .442

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