- Describe what a function does in your own words

A function gets an output from an input - Calculate the output of the following function

```
f(x) = {
x^2 if x is even
x+10 if x is odd
}
What will be the output for the following inputs?
a) f(2)=4
b) f(7)=17
c) f(0)=0
Write the definition of a function f that takes an input x, divides it by four and then outputs that result subtracted by 5.
f(x)=x/4-5
```