Final answer:
The statement that functions can have multiple outputs is false because a function can only assign one output for each input.
Step-by-step explanation:
The statement about functions that is not true is 1) Functions can have multiple outputs. By definition, a function assigns exactly one output for each input. This means a single input cannot have multiple outputs, which is what differentiates a function from a more general relation. Statement 2) Functions can have multiple inputs is true, as functions can take more than one input variable. Statements 3) Functions can have a range of values for the domain and 4) Functions can have a range of values for the codomain are also true. The domain is the set of all possible inputs that a function can accept, which indeed can be a range of values, and the codomain is the set of all possible outputs, which, too, can be a range.