Answer
$${\bf{e}} = 1$$
Work Step by Step
$$\eqalign{
& {\text{From the graph we can see that the graph is a parabola, then:}} \cr
& {\bf{e}} = 1 \cr} $$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 10 - Analytic Geometry - 10.4 Summary of the Conic Sections - 10.4 Exercises - Page 997: 47
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