Respostas

2013-12-13T01:13:44-02:00
Substitua os valores
G(x)=ax+b G(x)=ax+b
G(x)=3a+b. G(-2)=-2a+b
5=3a+b -2a+b= -5



b=5-3a. -2a+5-3a=-5
b=5-6. -5a=-10 => a=2
b=-1.

Logo:::
g(x)=ax+b
g(1/2)=2.(1/2)-1
g(1/2)=-1