Exam 4 Solutions Sp10 (2)

Finally since then c 5 and the hyperbolas foci are 8

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Unformatted text preview: ) and (1, 2) and asymptotes . Finally, since , then c = 5 and the hyperbola's foci are (–8, 2) and (2, 2). Here is the sketch. y x 4. Find the equation of the line tangent to the ellipse We are given a point: And we need a slope. through the point . . . So the equation is 5. Find the volume of the solid obtained by revolving the ellipse about the x-axis. Here is a sketch for reference. y x First note that we need revolve only the top half about the x-axis. Revolving that little strip about the x-axis would sweep out a nearly disk-shaped solid. The volume thereby contrib...
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This document was uploaded on 03/18/2014 for the course MATH 237 at Frostburg.

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