Algebra 1

by Hall, Prentice

Published by Prentice Hall

ISBN 10: 0133500403

ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Chapter Review - 1-3 Real Numbers and the Number Line - Page 70: 43

Answer

Rational

Work Step by Step

A rational number is any number that can be represented by the quotient of two integers. The number $4.288$ can be rewritten as a quotient of integers if we multiply by $\frac{1000}{1000}$: $4.288\times\frac{1000}{1000}=\frac{4288}{1000}$. Therefore, it is rational.

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