Answer
$y=200(0.75)^t$
Work Step by Step
Our initial amount is $200$, and the percent decrease is: $0.25$. Then the model for the value is: $y=200(1-0.25)^t=200(0.75)^t$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 7 Exponential and Logarithmic Functions - 7.2 Graph Exponential Decay Functions - 7.2 Exercises - Problem Solving - Page 490: 31a
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