Question

Dada a função exponencial f(x)= x+1, determine: 3

f(2):

Answer 1

$f(x)= 3^{x+1}$

a) $f(2)= 3^{2+1} =3^{3}=27$

b) $f(4)= 3^{4+1} =3^{5}=243$

c) $f( \frac{1}{2} )= 3^{ \frac{1}{2} +1} =3^{ \frac{3}{2} }= \sqrt{ 3^{3} } =3 \sqrt{3}$

d) $f(-1)= 3^{-1+1} =3^{0}=1$