Quadratic function

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In algebra, Quadratic function is function that contains an expression where its degree (the highest exponent it has) is 2, which means that it is quadratic (See etymology). Its single-variable standard form isː

When such a function gets plotted on a graph where , a curve that extends infinitely called a parabola will appear.

Etymology[change | change source]

The word quadratic comes from the Latin word quadrātum ("square"). This is because of the presence of a number (which is in the standard form) that is the result of squaring its square root ().