A functional relationship between x and y such that y is a function of x is defined by a rule such that for every x there exists a unique y.Functions seem like they have a language of their own. Look at this new language and the terms it uses. You see terms such as: relation, function, functional notation, x-intercept, y-intercept, axis of symmetry, maximum (of a function), minimum (of a function), and vertex.
Pick one of these terms, and explain the term to your classmates in your own words.