Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 9 - Review Exercises - Page 1035: 30


See figure: vertex $(4,-1)$, focus $(4,0)$, and directrix $y=-2$

Work Step by Step

Step 1. From the given equation, we can find $p=\frac{4}{4}=1$ with the parabola opening upwards as shown in the figure. Step 2. We can identify the vertex at $(4,-1)$, focus at $(4,0)$, and directrix as $y=-2$
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