SOLUTION: A definition of a function

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Question 1196554: A definition of a function
Found 2 solutions by math_tutor2020, MathLover1:
Answer by math_tutor2020(3817) About Me  (Show Source):
Answer by MathLover1(20850) About Me  (Show Source):
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function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable)
A function relates an input to an output.
Formal Definition of a Function:
A function relates each element of a set with exactly one element of another set
(possibly the same set).