Answer
$f(x)=-x+7$
Work Step by Step
The slope is:
$m=\frac{2-6}{5-1}$
$m=\frac{-4}{4}$
$m=-1$
Use point-slope form:
$y-6=-1(x-1)$
$y=-x+1+6$
$f(x)=-x+7$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 3 - Section 3.5 - Equations of Lines - Exercise Set - Page 173: 55
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