True
some real world problems have more than one answer (output) given one input, these situations can be described by functions
False
multiplexer
It is a relationship from one set to another, which is not a function.
No. A function has only one output per input.
No. If an input in a function had more than one output, that would be a mapping, but not a function.
No, it is not. A function can only have one output per input. (If it has more than one, it is still maths, but it cannot be called a "function". It would probably be called an equation or a formula etc...).
By definition. If one input has more than one outputs then it is not a function.
it is possible
It is possible.
it is possible
True
false
false
True
Yes it is possible