Algebra: A Combined Approach (4th Edition)

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

Chapter 8 - Section 8.1 - Review of Equations of Lines and Writing Parallel and Perpendicular Lines - Exercise Set - Page 572: 17

Answer

$3x+8y=5$

Work Step by Step

$(3/5, 4/10)$ and $(-1/5, 7/10)$ $m= (4/10-7/10)/(3/5--1/5)$ $m=(-3/10)/(4/5)$ $m=-.3/.8$ $m=-3/8$ $y=mx+b$ $4/10=(3/5)*(-3/8)+b$ $4/10=-9/40+b$ $16/40 = -9/40+b$ $16/40 +9/40 = 9/40-9/40+b$ $25/40=b$ $5/8=b$ $y=-3/8x+5/8$ $8*(y=-3/8x+5/8)$ $8y=-3x+5$ $8y+3x=-3x+5+3x$ $3x+8y=5$
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