Answer
See graph
Work Step by Step
Graph of x^2+y^2=4
The center is $(0,0)$ and the radius is 2. All points are two units away from the center.
This is the most circular, and eccentricity is 0.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 10 - Section 10.2 - The Ellipse and the Hyperbola - Exercise Set - Page 618: 70b
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