Answer
Time must have positive values
Work Step by Step
It is because $t$ represents the time and time can't have negative values in real life scenarios.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 8 - Graphing Quadratic Functions - 8.2 - Graphing f(x) = ax^2 + c - Monitoring Progress - Page 428: 6
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