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
Introduction to Logarithms
1:49 minutes
Problem 3
Textbook Question
Textbook QuestionIn Exercises 1–8, write each equation in its equivalent exponential form. 2 = log3 x
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Logarithmic Functions
Logarithmic functions are the inverses of exponential functions. The logarithm log_b(a) answers the question: 'To what exponent must the base b be raised to produce a?' In the given equation, log3(x) indicates that 3 must be raised to a certain power to yield x.
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Graphs of Logarithmic Functions
Exponential Form
Exponential form expresses equations in terms of exponents. For a logarithmic equation like log_b(a) = c, the equivalent exponential form is b^c = a. This transformation is crucial for solving equations involving logarithms, as it allows for easier manipulation and understanding of the relationship between the variables.
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Exponential Functions
Base of a Logarithm
The base of a logarithm is the number that is raised to a power to obtain a given value. In the equation log3(x), the base is 3. Understanding the base is essential for converting logarithmic equations to exponential form, as it determines the relationship between the logarithm and the resulting exponential expression.
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Logarithms Introduction
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