Respostas

2014-06-01T21:34:13-03:00
F(x)=3x + 5
f(-3)=3. (-3) +5
f(-3)= -9 +5
f(-3)= - 4

f(x)=3x +5
f(0)= 3.0 +5
f(0)= 0 + 5
f(0)=5

f(x)=3x +5
f(-4)=3.(-4)+5
f(-4)=-12 +5
f(-4)= - 7