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The range of a function is the set of all possible output values it can produce. It is determined by evaluating the function over its domain.
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Domain: The set of all possible input values for which a function is defined.
Inverse Function: A function that reverses another function, meaning if $f(x) = y$, then $f^{-1}(y) = x$.
Vertex Form: $$y = a(x-h)^2 + k$$, where $(h, k)$ is the vertex of a quadratic function.