1. Describe a real-life situation that can be modeled by a  function  (a relation in which every input value corresponds to  only one  output value). The situation must be different from the examples provided in the reading and in the homework. Identify the input value and the output value of the function, and provide justification that your relation does, in fact, represent a function.
2. Create a function in the form  y   =  f ( x ) that models the relation described. You may choose variables in place of  y   or  x   that better represent the relation, as seen in the provided example.
3. Identify the domain and range of your function, using proper mathematical notation.
4. Cite any sources you may have used in formulating your response.

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