Respostas

2014-06-02T13:51:17-03:00
F(x)= y

f(x)= 3x+1<<<<atribua valores pra x

f(0)= 3.(0)+1
f(0)=1

f(1)=3.(1)+1
f(1)=3+1
f(1)=4

f(2)=3.(2)+1
f(2)=7

x     y
0     1
1     4
2     7

Marque esses pontos trace a reta.