Algebra: A Combined Approach (4th Edition)

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

Chapter 7 - Cumulative Review: 14

Answer

1) If x = 0, then y = 6 2)If y = -2, then x = 4 3)If x = 3, then y = 0 Table: x | y 1) 0 | 6 x | y 2) 4|-2 x | y 3) 3 | 0

Work Step by Step

The equation is: 2x + y = 6 Thus, the given values should satisfy the equation. 1) In the equation, if we put x = 0, then: 2(0) + y = 6 y=6 Thus if x = 0, then y = 6. 2) In the equation, if we put y = -2, then: 2x -2 = 6 Adding 2 on both sides, 2x - 2 + 2 = 6 + 2 2x = 8 Dividing by 2 on both sides, x = 4 Thus, if y = -2, then x = 4 3) In the equation, if we put x = 3, then: 2(3) + y = 6 6 + y = 6 Subtracting six from both sides, 6 - 6 + y = 6 - 6 y = 0 Thus, if x = 3, then y = 0.
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