#### Answer

1

#### Work Step by Step

To find the slope of a line using two points, $(x_1, y_1)$ and $(x_2, y_2)$, we use the formula $m=\frac{y_2-y_1}{x_2-x_1}$. We substitute these points in to get
$m=\frac{1-(-3)}{3-(-1)}=\frac{4}{4}=1$

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

1

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