## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 4 - An Introduction to Functions - 4-6 Formalizing Relations and Functions - Lesson Check - Page 271: 1

#### Answer

The domain is from -2 to 1 because the x coordinates have values of -2,-1,0 and 1 and thus the relation has this domain. The range is from 3 to 6 because the y coordinates have values of 3,4, 5 and 6 and thus the relation has this range. The relation is a function because one x coordinate has only one y value and thus it passes the vertical line test.

#### Work Step by Step

The domain is from -2 to 1 because the x coordinates have values of -2,-1,0 and 1 and thus the relation has this domain. The range is from 3 to 6 because the y coordinates have values of 3,4, 5 and 6 and thus the relation has this range. The relation is a function because one x coordinate has only one y value and thus it passes the vertical line test.

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