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
Solving Exponential and Logarithmic Equations
3:08 minutes
Problem 114a
Textbook Question
Textbook QuestionWrite an equation for the inverse function of each one-to-one function given. ƒ(x) = 4^x+2
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
One-to-One Functions
A one-to-one function is a type of function where each output is produced by exactly one input. This means that no two different inputs can yield the same output. Understanding this property is crucial for finding the inverse of a function, as only one-to-one functions have inverses that are also functions.
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Inverse Functions
An inverse function essentially reverses the effect of the original function. If a function ƒ takes an input x and produces an output y, the inverse function ƒ⁻¹ takes y back to x. To find the inverse, we typically swap the roles of x and y in the equation and solve for y.
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Exponential Functions
Exponential functions are functions of the form ƒ(x) = a^x, where a is a positive constant. They are characterized by their rapid growth or decay and are essential in various applications. To find the inverse of an exponential function, we often use logarithms, as they are the inverse operations of exponentiation.
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