Answer
0
Work Step by Step
$y=mx+b$
is the slope intercept form: slope m and y-intercept b.
So, we solve $y+4=9$ for y:
$y=9-4$
$y=5$
$(y=0x+5$, a horizontal line$)$
m=0
Calculus with Applications (10th Edition)
by Lial, Margaret L.; Greenwell, Raymond N.; Ritchey, Nathan P.
Published by
Pearson
ISBN 10:
0321749006
ISBN 13:
978-0-32174-900-0
Chapter 1 - Linear Functions - Chapter Review - Review Exercises - Page 40: 21
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