How Do I Solve for the Intersection Points of Bounded Equations?

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Homework Help Overview

The original poster is tasked with finding the volume of a solid generated by revolving a region bounded by specific equations: y=2x², y=0, and x=2. The problem involves determining intersection points related to different axes and lines.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to equate the given equations to find intersection points but expresses uncertainty about how to handle the boundary x=2. Other participants question the clarity of the original poster's understanding and seek to clarify the specific points of confusion.

Discussion Status

The discussion is ongoing, with participants exploring the original poster's understanding of the problem. Some guidance has been offered regarding the intersections of the curves, but there is no explicit consensus on the best approach to take for the original poster's specific question.

Contextual Notes

There appears to be some confusion regarding the interpretation of the problem, particularly in relation to the boundaries and the nature of the solid being generated. The original poster's uncertainty about equating x=2 suggests a need for further clarification on how to approach the problem.

ISU20CpreE
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I have to find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the indicated lines.

[tex]y=2x^2 , y=0 , x=2[/tex] It then wants me to figure out:

(a) the y-axis (b) the x-axis
(c) the line y=8 (d) the line x=2

In order to get the intersection points I need to equate the equations given to me. The problem is I really don't know how to equate the [tex]x=2[/tex]
thats holding me to finish this problem. Please I need some advice.
 
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You mean you're only having trouble with question d? It's not really clear to me where you're stuck. What have you done so far?
 
Not clear what the question is asking. You have a surface area on the XY plane bounded by two straight lines and a hyperbola. What does it revolving around to generate a solid?
 
You appear to be asking about the points of intersection of those three boundaries, but surely that's easy (If you are taking calculus).

The curves y= 2x2, y= 0 intersect at y= 0= 2x2 or x= 0, y= 0.
The curves y= 0, x= 2 intersect at (2,0), of course.
The curves y= 2x2, x= 2 intersect at (2, 2(2)2)= (2,8).
 

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