The function f(x) = x + 1 is injective because each different input results in a unique output.
The function f(x) = x + 1 is injective if each different input yields a different output (no two different inputs produce the same output). In this case, for any two distinct inputs x1 and x2, if f(x1) = f(x2), then x1 must equal x2. Therefore, the function f(x) = x + 1 is injective.
https://brainly.com/question/5614233