All of the functions below have a domain of all real numbers. Which of them do NOT have inverses? There may be more than one.
\( \square f ( x ) = 3 x ^ { 2 } - 20 x \)
\( \square h ( x ) = 4 x ^ { 3 } - 11 \)
\( \square g ( x ) = 5 ^ { 2 x + 3 } \)
\( \square k ( x ) = 2 x + 3 \) . Submit Question