College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 7 - Section 7.3 - The Ellipse - 7.3 Assess Your Understanding - Page 524: 15

Answer

$(B)$

Work Step by Step

The major axis is along the $y$-axis, center is at (0,0). The denominator under $y^{2}$ is going to be larger. The vertices are $(0,\pm 2),\quad a=2, \quad a^{2}=4$ The minor axis has length $2b=2, $ so $\quad b=1, \quad b^{2}=1$ The equation is$\quad$ $\displaystyle \frac{x^{2}}{1}+\frac{y^{2}}{4}=1$, ....choice $(B)$
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