Respostas

2014-06-07T14:06:47-03:00
f(x)= -2x + 5
f(1)= -2.1+5
f(1)=-2+5
f(1)=3
2014-06-07T14:07:48-03:00
F(x)= -2x+5
       -2.1+5
           3