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Alg2 lesson 10-2
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Alg2 lesson 10-2

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Alg2 lesson 10-2 Alg2 lesson 10-2 Presentation Transcript

  • Exponential form log form
    If bx = a, then x = logb a
    b and x must be positive
    b cannot equal 1
  • Write in exponential form.
    Write in exponential form.
    exponent
    base
    Example 2-1a
  • Write each equation in exponential form.
    a.
    b.
    Answer:
    Answer:
    Example 2-1c
  • Write in logarithmic form.
    Write in logarithmic form.
    exponent
    base
    Example 2-2a
  • Write each equation in logarithmic form.
    a.
    b.
    Answer:
    Answer:
    Example 2-2c
  • Evaluate
    Example 2-3a
  • Evaluate
    log10 1000 = y
    1000 = 10y
    103 = 10y
    3 = y
    Example 2-3b
  • Evaluate
    Evaluate
    log9 92 = y
    92 = 9y
    2 = y
    log5 53 = y
    53 = 5y
    3 = y
    log7 712 = 12
    Example 2-4a
  • Evaluate
    =
    Example 2-4b
  • Solve
    Example 2-5a
  • Solve
    Example 2-5b
  • Solve
    Check 3:
    Check 1:
    or
    Example 2-7a