College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 7 - Conic Sections - Exercise Set 7.1 - Page 670: 18

Answer

Foci: $(0,1)$ and $(0, -1)$.

Work Step by Step

Write the equation in standard form: $6x^{2}=30-5y^{2}\qquad/+5y^{2}$ $6x^{2}+5y^{2}=30\qquad/\div 30$ $\displaystyle \frac{x^{2}}{5}+\frac{y^{2}}{6}=1$ Major axis parallel to the $y$-axis, vertical. $a=\sqrt{6}\approx 2.45$ $b=\sqrt{5}\approx 2.24$ Foci are $c$ units above and $c$ units below the center, $c^{2}=6-5=1$ $c=1$ Foci: $(0,1)$ and $(0, -1)$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.