A Function F Is Depicted in the Graph $\{ x \mid 3 < x < 4 \}$

Multiple Choice

A function f is depicted in the graph. Find any input values that produce the indicated output.
-f(x) = 3

A) 4
B) $\{ x \mid 3 < x < 4 \}$
C) $\{ x \mid 3 \leq x \leq 4 \}$
D) $\{ x \mid 3 < x \leq 4 \}$