Asked by Ian

What characterizes a one-to-one function?
Select an answer

A.
Each input matches a unique output.


B.
Each output can match multiple inputs.


C.
The function has a maximum value.


D.
The function is always increasing.

All Answers 1

Answered by GPT-5 mini AI
A.

A one-to-one (injective) function assigns distinct outputs to distinct inputs — no two different inputs share the same output.