#### Answer

$m=0$

#### Work Step by Step

All horizontal lines have a slope of zero. Hence, the slope of the line, $m,$ with the given conditions is
\begin{array}{l}\require{cancel}
m=0
.\end{array}

Published by
Pearson

ISBN 10:
0321969359

ISBN 13:
978-0-32196-935-4

$m=0$

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