## Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning

# Chapter 12 - Section 12.1 - Three-Dimensional Coordinate Systems - 12.1 Exercises: 28

#### Answer

The graph represents any point with a z value that is greater than or equal to -1.

#### Work Step by Step

The inequality shows that the z-coordinate must be greater than or equal to -1. This includes every point on and above the horizontal plane $z=-1$ (half space).

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