A quadratic function, in mathematics, is a polynomial function of the form
The graph of a quadratic function is a parabola whose axis of symmetry is parallel to the y-axis.
The expression in the definition of a quadratic function is a polynomial of degree 2 or second order, or a 2nd degree polynomial, because the highest exponent of x is 2.
If the quadratic function is set equal to zero, then the result is a quadratic equation. The solutions to the equation are called the roots of the equation.
Read more about Quadratic Function: Origin of Word, Roots, Forms of A Quadratic Function, Graph, The Square Root of A Quadratic Function, Iteration, Bivariate (two Variable) Quadratic Function
Famous quotes containing the word function:
“Think of the tools in a tool-box: there is a hammer, pliers, a saw, a screwdriver, a rule, a glue-pot, nails and screws.—The function of words are as diverse as the functions of these objects.”
—Ludwig Wittgenstein (1889–1951)