The mapping diagram shows a functional relationship. Complete the statements.

Answer:
f(4) =[tex]\frac{1}{2}[/tex]
x = 8
Step-by-step explanation:
f(4) =[tex]\frac{1}{2}[/tex] [ image of 4 is [tex]\frac{1}{2}[/tex]]
f(x) = 4
then x = 8 [ the preimage of 4 is 8]