Use the graph of the functions f(x)\displaystyle {f{{\left({x}\right)}}} and g(x)\displaystyle {g{{\left({x}\right)}}} given below to answer each of the following. 

   

(1)  f(4)=\displaystyle {f{{\left({4}\right)}}}= (2)  g(4)=\displaystyle {g{{\left({4}\right)}}}=
(3)  (f+g)(4)=\displaystyle {\left({f}+{g}\right)}{\left({4}\right)}= (4)  f(3)=\displaystyle {f{{\left(-{3}\right)}}}=
(5)  g(3)=\displaystyle {g{{\left(-{3}\right)}}}= (6)  (fg)(3)=\displaystyle {\left({f}-{g}\right)}{\left(-{3}\right)}=
(7)  f(0)=\displaystyle {f{{\left({0}\right)}}}= (8)  g(0)=\displaystyle {g{{\left({0}\right)}}}=
(9)  (gf)(0)=\displaystyle {\left({g}-{f}\right)}{\left({0}\right)}= (10)  f(4)=\displaystyle {f{{\left(-{4}\right)}}}=
(11)  g(4)=\displaystyle {g{{\left(-{4}\right)}}}= (12)   (fg)(4)=\displaystyle {\left({f}{g}\right)}{\left(-{4}\right)}=