Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
6. Exponential & Logarithmic Functions
Graphing Logarithmic Functions
1:19 minutes
Problem 18a
Textbook Question
Textbook QuestionIf the statement is in exponential form, write it in an equivalent logarithmic form. If the statement is in logarithmic form, write it in exponential form. log↓4 1/64 = -3
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Exponential and Logarithmic Functions
Exponential functions are mathematical expressions where a constant base is raised to a variable exponent, while logarithmic functions are the inverse operations of exponentials. For example, if b^y = x, then log_b(x) = y. Understanding the relationship between these two forms is crucial for converting between them.
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Graphs of Logarithmic Functions
Change of Base Formula
The change of base formula allows you to convert logarithms from one base to another, which can be useful for calculations. It states that log_b(a) = log_k(a) / log_k(b) for any positive k. This concept is important when dealing with logarithmic expressions that may not be in a familiar base.
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Change of Base Property
Properties of Logarithms
Logarithms have several key properties that simplify calculations, such as the product, quotient, and power rules. For instance, log_b(mn) = log_b(m) + log_b(n) and log_b(m/n) = log_b(m) - log_b(n). Familiarity with these properties aids in manipulating logarithmic expressions effectively.
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