Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 8 - Section 8.1 - Linear Equations with Two Variables - Exercises - Page 297: 15

Answer

$$(3,10), \quad (0,4), \quad (-1,2 ).$$

Work Step by Step

Substitute the value of $x$ and solve for $ y $ to get the ordered pair $ (x,y)$ as follows: $$ 2(3) = y- 4 \Longrightarrow y=6+4 \Longrightarrow y =10 ,$$ $$ 2(0) = y- 4 \Longrightarrow y=0+4 \Longrightarrow y =4 ,$$ $$ 2(-1) = y- 4 \Longrightarrow y=-2+4 \Longrightarrow y =2 ,$$ Hence, we have the pairs $$(3,10), \quad (0,4), \quad (-1,2 ).$$
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