Answer:
A relation from a set of inputs to a set of possible outputs where each input is related to exactly one output
Step-by-step explanation:
Answer:
See below.
Step-by-step explanation:
A function is a relation in which each input has only one output.
For example f(x) = 3x + 1 is a function. Whatever value of x you use the value of f(x) is only one value.
But the relation y = √x is not a function because for example if x = 4 then x = 2 or -2 - two outputs for the same input.
