The mapping diagram shows a functional relationship.
A mapping diagram shows a relation, using arrows, between domain and range for the following ordered pairs: (8, 4), (negative two-thirds, 3), (11, negative 1), (4, one-half).
Complete the statements.
f(4) is ____.
f(x) = 4 when x is _____.
f(4) is one-half.
f(x) = 4 when x is 11.