Answer
See explanations.
Work Step by Step
Given $y^2=8x$, we have $4p=8$ and $p=2$. Since the parabola opens to the right with vertex $(0,0)$, we can find its focus at $(2,0)$ and directrix as $x=-2$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 9 - Section 9.3 - The Parabola - Exercise Set - Page 998: 78
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