Roman C. answered • 11/28/12
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These are functions of the form f(x) = ax2 + bx + c where a,b,c are constants called coefficients and a≠0.
Facts:
The graph of a quadratic function is called a parabola.
The roots (where the function equals zero) are given by the quadratic formula:
x = [-b ± √(b2 - 4ac)] / (2a)
Shefali J.
Adding to Roman C. answer. It's a U shaped curve that may open up or down depending on the sign of coefficient a.
11/28/12