Answer:
IM DOING ALGEBRA TOOO I HATE IT I believe that the first answe is function 4
below
Step-by-step explanation:
f(3)=2
f(20)=0
f(8)=4
f(0)=-1
if f(x)=9 then x=4
if f(x)=4 then x=8
f(x)=0 then x=20
The bottom one is correct.
