Answer
Ellipse
Work Step by Step
Given: $x^{2}+4y^{2}=16$
Divide both sides by $16$: $\frac{x^{2}}{16}+\frac{y^{2}}{16}=1$
$\frac{x^{2}}{4^{2}}+\frac{y^{2}}{2^{2}}=1$
which is the standard form of the equation of an ellipse.
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
APPENDIX C - Graphs of Second-Degree Equations - C Exercises - Page A 23: 13
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