## Algebra 1

Published by Prentice Hall

# Chapter 9 - Quadratic Functions and Equations - Cumulative Test Prep - Multiple Choice - Page 595: 8

I

#### Work Step by Step

The universe is made up of positive numbers, the number zero, and negative numbers. Since set $A$ is the set of positive numbers and the number zero, set $A'$ is the set of negative numbers.

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