I’m having trouble understanding the purpose of the “return” command to begin with.

In the example from the exercise:

```
def square_point(x_value, y_value):
x_2 = x_value * x_value
y_2 = y_value * y_value
```

Doesn’t this already assign (and store!) values to variables `x_2`

and `y_2`

as soon as the `square_point`

function is called with concrete values of x and y?

What then is the added benefit of `return x_2, y_2`

in the third line of the function?