## College Algebra 7th Edition

Published by Brooks Cole

# Chapter 1, Equations and Graphs - Section 1.1 - The Coordinate Plane - 1.1 Exercises: 10

#### Answer

Refer to the image below for the sketch.

#### Work Step by Step

RECALL: The point $(x, y)$ has: $x$ = directed distance of the point from the y-axis (negative when to the left of the y-axis, positive when to the right) $y$ = directed distance of the point from the x-axis (negative when below the x-axis, positive when above) Thus. the set $\left\{(x, y)|y=2\right\}$ represents the set of points that are 2 units above the x-axis. These points form a horizontal line whose equation is $y=2$. (refer to the attached image in the answer part)

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