Algebra: A Combined Approach (4th Edition)

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

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations by Graphing - Practice - Page 288: 8

Answer

No solutions

Work Step by Step

$-2/3x+y=6$ $3y=2x+5$ $3y=2x+5$ $(3y=2x+5)/3$ $y=2/3*x+5/3$ $-2/3x+y=6$ $-2/3x+y-y-6=6-y-6$ $-2/3*x-6=-y$ $(-2/3*x-6=-y)*-1$ $2/3*x+6=y$ The slopes of the lines are the same $(2/3=2/3)$, so the lines are parallel. (The intercepts are different.) Parallel lines never intersect, so there are no solutions to the system.
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