Answer
See graph, $y=\frac{1}{x}$
Work Step by Step
1. See graph for $(e^t,e^{-t})$ over $t\ge0$
2. From $x=e^t$, we have $e^{-1}=\frac{1}{x}$, thus $y=\frac{1}{x}$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 9 - Analytic Geometry - Section 9.7 Plane Curves and Parametric Equations - 9.7 Assess Your Understanding - Page 714: 16
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