Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Concept explainers
Rate of Change
The relation between two quantities which displays how much greater one quantity is than another is called ratio.
Slope
The change in the vertical distances is known as the rise and the change in the horizontal distances is known as the run. So, the rise divided by run is nothing but a slope value. It is calculated with simple algebraic equations as:
Question
-
Find a function f and a number a such that
![The expression shown is:
\[
\lim_{{h \to 0}} \frac{{(2 + h)^6 - 64}}{h} = f'(a)
\]
### Explanation:
This mathematical expression is a limit used in calculus to find the derivative of a function at a specific point.
- **Limit Notation (lim):** The limit as \( h \) approaches 0 is used to evaluate the slope of the tangent line to the curve at a certain point.
- **Expression (2 + h)^6 - 64:** The expression involves raising \( (2 + h) \) to the sixth power and subtracting 64. The number 64 is \( 2^6 \), indicating that initially, \( (2+h)^6 \) is expanded or calculated.
- **Division by h:** The division by \( h \) represents the change in the value of the function concerning the change in \( h \), which is the core concept in deriving a derivative.
- **Equals f'(a):** The right side \( f'(a) \) indicates that this limit is equal to the derivative of a function \( f(x) \) evaluated at \( a \).
This expression is fundamental in calculus for finding the instantaneous rate of change of a function or its derivative at a given point.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd15c165e-39ef-478b-a90f-b8114f0d2e93%2F41403043-e7c0-4fa1-b808-5826c7d78da5%2Fjzig2mj_processed.png&w=3840&q=75)
Transcribed Image Text:The expression shown is:
\[
\lim_{{h \to 0}} \frac{{(2 + h)^6 - 64}}{h} = f'(a)
\]
### Explanation:
This mathematical expression is a limit used in calculus to find the derivative of a function at a specific point.
- **Limit Notation (lim):** The limit as \( h \) approaches 0 is used to evaluate the slope of the tangent line to the curve at a certain point.
- **Expression (2 + h)^6 - 64:** The expression involves raising \( (2 + h) \) to the sixth power and subtracting 64. The number 64 is \( 2^6 \), indicating that initially, \( (2+h)^6 \) is expanded or calculated.
- **Division by h:** The division by \( h \) represents the change in the value of the function concerning the change in \( h \), which is the core concept in deriving a derivative.
- **Equals f'(a):** The right side \( f'(a) \) indicates that this limit is equal to the derivative of a function \( f(x) \) evaluated at \( a \).
This expression is fundamental in calculus for finding the instantaneous rate of change of a function or its derivative at a given point.
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