The given fuctions are:
[tex]\begin{gathered} f(x)=3^x \\ g(x)=f(x+1) \end{gathered}[/tex]this means that for the reference it is:
[tex]g(x)=3^{x+1}[/tex]now for the first coordinate it is:
[tex]g(0)=3^{0+1}=3[/tex]then:
[tex]g(1)=3^{1+1}=9[/tex]then:
[tex]g(2)=3^{2+1}=27[/tex]Finally
[tex]g(3)=3^{3+1}=81[/tex]