#### Answer

$\frac{d-b}{c-a}$

#### Work Step by Step

(a,b) and (c,d)
x1=a, y1=b,x2=c,y2=d
Using slope formula
m = $\frac{y2-y1}{x2-x1}$
m= $\frac{d-b}{c-a}$

Published by
Brooks Cole

ISBN 10:

ISBN 13:

$\frac{d-b}{c-a}$

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