Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.1 - Linear Equations in Two Variables - 2.1 Exercises - Page 170: 79


$y=x-4$ $Slope: m=1$ $a.) y=x+4.3$ $b.) y=-x+9.3$

Work Step by Step

$x-y=4$ $y=x-4$ $Slope: m=1$ --- $a.)$ $(2.5,6.8), m=1$ $y-6.8=1(x-2.5)$ $y=x+4.3$ $b.)$ $(2.5,6.8), m=-1$ $y-6.8=(-1)(x-2.5)$ $y=-x+9.3$
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