Any quadratic function can be written in the standard form f(x) = a(x – h)2 + k, where h as we will as k are given in terms of coefficients a, b as we will as c. . A function is studied in mathematics very often. Function is said to be a relation which have the property that it is each allowed input must have a single output result corresponding to it. There are many different types of functions. On the basis of degree, the functions can be classified as. -(1) Linear Function – Degree one(2) Quadratic Function -. Degree two (3) Cubic Function -. Degree three (4) Bi quadratic Function -. Degree four Here, we are going to discuss about quadratic functions. A. quadratic function is defined as a type of second -degree polynomial function. A function having a higher variable exponent as two, is known as a quadratic function. It has a few interesting facts. This function can either be an increasing. function or a decreasing function. We can say that the quadratic function can attain only one maximum value or one minimum value. The point where function gets it is maximum or minimum is termed as the vertex of the quadratic function.