A function is a method used to show what happens when a number is inputted into a ‘mathematical machine’, it goes through the process and is the outputted.
A function in these examples such as the ones below are the change(s) made to the original number inputted into the ‘mathematical machine’.
|Input||Function = multiply by 3||Output|
In this example, as shown above, the function is ‘multiply by 3’.
Looking at a slightly more difficult example, we have:
In this example, the function is because that is what changes the inputted number to give the output.