Table of contents
- 0. Functions7h 52m
- Introduction to Functions16m
- Piecewise Functions10m
- Properties of Functions9m
- Common Functions1h 8m
- Transformations5m
- Combining Functions27m
- Exponent rules32m
- Exponential Functions28m
- Logarithmic Functions24m
- Properties of Logarithms34m
- Exponential & Logarithmic Equations35m
- Introduction to Trigonometric Functions38m
- Graphs of Trigonometric Functions44m
- Trigonometric Identities47m
- Inverse Trigonometric Functions48m
- 1. Limits and Continuity2h 2m
- 2. Intro to Derivatives1h 33m
- 3. Techniques of Differentiation3h 18m
- 4. Applications of Derivatives2h 38m
- 5. Graphical Applications of Derivatives6h 2m
- 6. Derivatives of Inverse, Exponential, & Logarithmic Functions2h 37m
- 7. Antiderivatives & Indefinite Integrals1h 26m
- 8. Definite Integrals4h 44m
- 9. Graphical Applications of Integrals2h 27m
- 10. Physics Applications of Integrals 2h 22m
4. Applications of Derivatives
Linearization
Problem 43
Textbook Question
Use linear approximations to estimate the following quantities. Choose a value of a to produce a small error.
e⁰·⁰⁶

1
Identify the function you want to approximate. In this case, the function is f(x) = e^x.
Choose a value of 'a' that is close to the point you want to estimate, which is x = 0.06. A good choice for 'a' is 0, because e^0 = 1 and it simplifies calculations.
Find the derivative of the function f(x) = e^x. The derivative, f'(x), is also e^x.
Use the formula for linear approximation: L(x) = f(a) + f'(a)(x - a). Substitute a = 0, f(a) = e^0 = 1, and f'(a) = e^0 = 1 into the formula.
Calculate L(0.06) using the linear approximation formula: L(0.06) = 1 + 1 * (0.06 - 0). This will give you an estimate for e^0.06.

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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Linear Approximation
Linear approximation is a method used to estimate the value of a function near a given point using the tangent line at that point. It is based on the idea that a function can be closely approximated by a linear function when the input is near a specific value. The formula for linear approximation is f(x) ≈ f(a) + f'(a)(x - a), where 'a' is the point of tangency.
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Derivative
The derivative of a function at a point measures the rate at which the function's value changes as its input changes. It is a fundamental concept in calculus that provides the slope of the tangent line to the function at that point. For linear approximations, the derivative is crucial as it determines the slope used in the linear equation.
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Exponential Function
The exponential function, denoted as e^x, is a mathematical function that grows rapidly as x increases. It is defined as the function whose derivative is equal to itself, making it unique in calculus. Understanding the properties of the exponential function is essential for estimating values like e^0.06, especially when using linear approximations around a point like e^0.
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