Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 4 - 4.3 - Conics - 4.3 Exercises - Page 337: 23



Work Step by Step

Directrix: $y=-p~~$ (Vertical axis) $-p=2$ $p=-2$ Parabola in the standard form with the vertex at origin (vertical axis): $x^2=4py$ $x^2=4(-2)y$ $x^2=-8y$
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