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...
Related questions
Question
![### Problem Statement:
**Question 7:**
Find the area of the region bounded by the graphs of \( f(x) = x^2 + 2x + 1 \) and \( g(x) = 3x + 3 \). Write the solution in exact form.
---
### Explanation on How to Approach:
To solve for the area between the curves, you can follow these steps:
1. **Find the Points of Intersection:**
- Set the functions equal to each other to determine the bounds for integration.
\[
x^2 + 2x + 1 = 3x + 3
\]
- Rearrange the equation:
\[
x^2 + 2x + 1 - 3x - 3 = 0 \implies x^2 - x - 2 = 0
\]
- Solve for \(x\):
\[
(x-2)(x+1) = 0
\]
Thus, \( x = 2 \) and \( x = -1 \).
2. **Set Up the Integral to Calculate the Area:**
- The area \( A \) between the two curves from \( x = -1 \) to \( x = 2 \) can be found using the integral:
\[
A = \int_{-1}^{2} (g(x) - f(x)) \, dx
\]
- Substitute the functions \( g(x) \) and \( f(x) \):
\[
A = \int_{-1}^{2} [(3x + 3) - (x^2 + 2x + 1)] \, dx
\]
- Simplify the integrand:
\[
A = \int_{-1}^{2} (3x + 3 - x^2 - 2x - 1) \, dx
\]
\[
A = \int_{-1}^{2} (-x^2 + x + 2) \, dx
\]
3. **Evaluate the Integral:**
- Perform the integration:
\[
\int (-x^2 + x + 2) \, dx = -\frac{x^3}{3} + \frac{x^2}{2} + 2x](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1e9d947d-304f-415e-95bf-140f5d3b17e4%2F74202fac-e49f-4a0a-825c-600d1d5873fc%2F00phz4j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Problem Statement:
**Question 7:**
Find the area of the region bounded by the graphs of \( f(x) = x^2 + 2x + 1 \) and \( g(x) = 3x + 3 \). Write the solution in exact form.
---
### Explanation on How to Approach:
To solve for the area between the curves, you can follow these steps:
1. **Find the Points of Intersection:**
- Set the functions equal to each other to determine the bounds for integration.
\[
x^2 + 2x + 1 = 3x + 3
\]
- Rearrange the equation:
\[
x^2 + 2x + 1 - 3x - 3 = 0 \implies x^2 - x - 2 = 0
\]
- Solve for \(x\):
\[
(x-2)(x+1) = 0
\]
Thus, \( x = 2 \) and \( x = -1 \).
2. **Set Up the Integral to Calculate the Area:**
- The area \( A \) between the two curves from \( x = -1 \) to \( x = 2 \) can be found using the integral:
\[
A = \int_{-1}^{2} (g(x) - f(x)) \, dx
\]
- Substitute the functions \( g(x) \) and \( f(x) \):
\[
A = \int_{-1}^{2} [(3x + 3) - (x^2 + 2x + 1)] \, dx
\]
- Simplify the integrand:
\[
A = \int_{-1}^{2} (3x + 3 - x^2 - 2x - 1) \, dx
\]
\[
A = \int_{-1}^{2} (-x^2 + x + 2) \, dx
\]
3. **Evaluate the Integral:**
- Perform the integration:
\[
\int (-x^2 + x + 2) \, dx = -\frac{x^3}{3} + \frac{x^2}{2} + 2x
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.Recommended textbooks for you
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning