Answer:
In simple terms, I would define a function as a machine that takes an input, and returns an output by applying a specific rule to the input.
Let say that x represents the input, y represents the output, and f represents the function.
y = f(x)
or:
Inputting x into f, results in y.
Some real world examples:
An ATM machine
Say you would like to withdraw some cash from your account:
The Function (f) is the ATM, that applies a rule, in this case “The cash dispensed should equal the amount requested”, in other words “The output should equal the input”.
The Input (x) is the requested amount that you type into the ATM.
The Output (y) is the cash dispensed after the function has run.
Thus, the following formula is true:
ATM(200) = 200
or:
Typing 200 (x) into the ATM (f), results in $200 (y) dispensed.
Explanation:
Hpoe it helps po :)
