Answer
The equation matches with the graph labeled as (b).
Work Step by Step
$x^2=-2y$
$x^2=4(-\frac{1}{2})y$
It is a parabola with vertical axis. The focus is the point: $(0,-\frac{1}{2})$. That is, the parabola opens downwards.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 4 - 4.3 - Conics - 4.3 Exercises - Page 337: 9
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