Respostas

2013-07-11T20:21:46-03:00
F(x) = ax + b
5= a.1+b
-4=a.(-2)+b .(-1)

5= a.1+b
4=2a-b
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9=3a
a=3

5=a+b
5=3+b
b=2


f(x)= 3x+2
F(6) = 3.6+2
f(6)=18+2
f(6)= 20
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