
Review of Short Phrases and Links 
This Review contains major "Quadratic Function" related terms, short phrases and links grouped together in the form of Encyclopedia article.
 Six NEFs have quadratic variance functions (QVF) in which the variance of the distribution can be written as a quadratic function of the mean.
 This yields the classic “bell curve” shape (provided that a < 0 so that the quadratic function is concave).
 The first formula above yields a convenient expression when graphing a quadratic function.
 For more general information about quadratic functions, see Quadratic function.
Quadratic Function
 You can think about a quadratic equation in terms of a graph of a quadratic function, which is called a parabola.
 A quadratic regression, for example, uses a quadratic function (seconddegree polynomial function) to produce a parabola of best fit.
 The derivative of a cubic function is a quadratic function.
Categories
 Quadratic Functions
 Parabola
 Graphing
 Concave

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