Algebra: A Combined Approach (4th Edition)

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

Chapter 3 - Review - Page 272: 9


$(-3,0)$ $(1,3)$ $(9,9)$

Work Step by Step

$9=-3x+4y$ $y=0$ $9=-3x+4(0)$ $9=-3x$ $x=-3$ $y=3$ $9=-3x+4(3)$ $9=-3x+12$ $-3=-3x$ $x=1$ $x=9$ $9=-3(9)+4y$ $9=-27+4y$ $36=4y$ $y=9$
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