Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 10 - Introduction to Differential Equations - 10.2 Graphical and Numerical Methods - Preliminary Questions - Page 513: 3


(b) is the right answer.

Work Step by Step

We know that the answer is (b) because $\ln t=c$ leads to $t=constant$. Thus, for any value for $y$, $t$ will be a constant.
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