Respostas

2013-09-25T15:20:31-03:00
A) f(0) = 3*0 + 15
f(0) = 15

b) f(0) = -4*0 + 12
f(0) = 12

c) f(0) = 5*0 - 7
f(0) = -7

d) f(0) = -5*0
f(0) = 0