we have that
g(x)= 1/2f(x)
Value of the table N 1) x=-3 f(x)=5
g(x)=(1/2)*5----> g(x)=2.5
solution of g(x) is (-3,2.5)
Value of the table N 2) x=-1 f(x)=-4
g(x)=(1/2)*-4----> g(x)=-2
solution of g(x) is (-1,-2)
Value of the table N 3) x=0 f(x)=2
g(x)=(1/2)*2----> g(x)=1
solution of g(x) is (0,1)
Value of the table N 4) x=5 f(x)=-8
g(x)=(1/2)*-8----> g(x)=-4
solution of g(x) is (5,-4)
Value of the table N 5) x=6 f(x)=3
g(x)=(1/2)*3----> g(x)=3/2
solution of g(x) is (6,3/2)
the solutions are
(-1,-2)
(6,3/2)