Respostas

2014-01-08T13:35:33-02:00
f(x)= -3x+4
-3(k+1)+4
-3k-3=4
-3k= 4+3
-3k= 7
k= -7/3

2014-01-08T14:41:29-02:00
F (K+1)=-3.(k+1)+4
F(K+1)= -3K-3+4
F(k+1)= -3k+1
-3K+1=0
-3k=-1
k=1/3