Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Review: 2

Answer

a is not a solution. b is a solution.

Work Step by Step

Check each ordered pair by replacing x and y in the system of equations. a. 2(2) + 3(2) = 1 4 + 6 = 1 10 = 1; False b. 2(-1) + 3(1) = 1 -2 + 3 = 1 1 = 1; True 3(1) - (-1) = 4 3 + 1 = 4 4 = 4; True Only b satisfies both equations, so b is a solution.
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