Answer:
..
Step-by-step explanation:
-9/8
The two points given are
(1,6) and (9,-3)
The slope is given by
m = (y2-y1)/(x2-x1)
= (-3-6)/(9-1)
= -9/8
Step 1. A=4
Step 2. Ib =3
Step 3 add it. Ans=7
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