Find the volume of the solid generated by revolving the region bounded by the graphs of y = 2x² + 1 and y = 2x + 14 about the x-axis. C... The volume of the solid generated by revolving the region bounded by the graphs of y= 2x² + 1 and y = 2x + 14 about the x-axis is (Round to the nearest hundredth.) cubic units.
Find the volume of the solid generated by revolving the region bounded by the graphs of y = 2x² + 1 and y = 2x + 14 about the x-axis. C... The volume of the solid generated by revolving the region bounded by the graphs of y= 2x² + 1 and y = 2x + 14 about the x-axis is (Round to the nearest hundredth.) cubic units.
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.5: Equations Of Lines
Problem 50E: The y-axis along with the graphs of y=-2x+7 and y=x+2 encloses a triangular region. Find the area of...
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![**Calculating the Volume of a Solid of Revolution**
In this exercise, you are asked to find the volume of the solid generated by revolving a specific region about the x-axis.
### Problem Statement:
Find the volume of the solid generated by revolving the region bounded by the graphs of \(y = 2x^2 + 1\) and \(y = 2x + 14\) about the x-axis.
---
**Step-by-Step Solution**
1. **Identify the functions involved:**
- \(y = 2x^2 + 1\): This is a quadratic function representing a parabola opening upwards.
- \(y = 2x + 14\): This is a linear function representing a straight line.
2. **Find the intersection points of the functions:**
- Set the equations equal to each other to find the points where the two graphs intersect:
\[2x^2 + 1 = 2x + 14\]
Simplifying this equation:
\[2x^2 + 1 - 2x - 14 = 0\]
\[2x^2 - 2x - 13 = 0\]
Use the quadratic formula:
\[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]
where \(a = 2\), \(b = -2\), and \(c = -13\).
3. **Calculate the volume:**
- The volume \(V\) of the solid generated by revolving the region around the x-axis is found using the disk or washer method involving integration.
- The volume formula using washers is:
\[V = \pi \int_{a}^{b} \left[ (R(x))^2 - (r(x))^2 \right] dx\]
where \(R(x)\) is the outer radius and \(r(x)\) is the inner radius.
4. **Determine the limits of integration and perform the integration:**
- Use the intersection points as the limits of integration.
- Integrate the squared functions of the boundaries to find the volume.
### Exact Volume Expression:
The volume of the solid generated by revolving the region bounded by the graphs of \(y = 2x^2 + 1\) and \(y = 2x + 14\) about the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F22969543-4b1b-47a8-98d2-f1e5e1e74392%2F6729d566-7ac9-4ba6-85e7-60b3570e289c%2F7b03vme_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Calculating the Volume of a Solid of Revolution**
In this exercise, you are asked to find the volume of the solid generated by revolving a specific region about the x-axis.
### Problem Statement:
Find the volume of the solid generated by revolving the region bounded by the graphs of \(y = 2x^2 + 1\) and \(y = 2x + 14\) about the x-axis.
---
**Step-by-Step Solution**
1. **Identify the functions involved:**
- \(y = 2x^2 + 1\): This is a quadratic function representing a parabola opening upwards.
- \(y = 2x + 14\): This is a linear function representing a straight line.
2. **Find the intersection points of the functions:**
- Set the equations equal to each other to find the points where the two graphs intersect:
\[2x^2 + 1 = 2x + 14\]
Simplifying this equation:
\[2x^2 + 1 - 2x - 14 = 0\]
\[2x^2 - 2x - 13 = 0\]
Use the quadratic formula:
\[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]
where \(a = 2\), \(b = -2\), and \(c = -13\).
3. **Calculate the volume:**
- The volume \(V\) of the solid generated by revolving the region around the x-axis is found using the disk or washer method involving integration.
- The volume formula using washers is:
\[V = \pi \int_{a}^{b} \left[ (R(x))^2 - (r(x))^2 \right] dx\]
where \(R(x)\) is the outer radius and \(r(x)\) is the inner radius.
4. **Determine the limits of integration and perform the integration:**
- Use the intersection points as the limits of integration.
- Integrate the squared functions of the boundaries to find the volume.
### Exact Volume Expression:
The volume of the solid generated by revolving the region bounded by the graphs of \(y = 2x^2 + 1\) and \(y = 2x + 14\) about the
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