Question

sendo f(x)=3x-2 e g(x)=2x+3 e b=f(a) entãog(b) vale:

a)6a-4
b)5a+1
c)3a-2
d)6a-6
e)5a-2

Answer 1

b = f(a)

f(a) = 3a - 2

b = 3a - 2
------------------------

g(b) = 2(3a - 2) + 3

g(b) = 6a - 4 + 3

g(b) = 6a - 1 

sem alternativa.