Respuesta :

Answer:

3/4

Step-by-step explanation:

f(x)=3•2^x

Let x = -2

f(-2)=3•2^-2

Exponents first  ( We know a^-b = 1/ a^b)

f(-2)=3• 1/2^2

     =3 * 1/4

     = 3/4