* THIS IS A TASK IN ERLANG PROGRAMMING LANGUAGE

* I only need help with the third bullet point that I have highlighted in bold

Create a module file named functions.erl. In this module, write the following functions. Make sure your module name is functions, and that you export each of these functions.

• A function named add that takes three arguments, and returns the sum of all three parameters.
• A function named makelist that takes three arguments, and returns a list consisting of the arguments (in the order that they appear in the function call).
• A function named third that takes one argument (a list), and returns the third element of the list.
• A function named quadratic that takes four arguments call them A, B, C, and X and returns the value of ax² + bx + c. Note this is not finding the value of a root, just evaluate the value of ax² + bx + c.