a means what in a quadratic equation
Definition of Quadratic Function. Quadratic function is a function that can be described by an equation of the form f(x) = ax 2 + bx + c, where a ≠ 0. In a quadratic function, the greatest power of the variable is 2. The graph of a quadratic function is a parabola. Definition of Quadratic Formula. The quadratic formula, , is used in algebra to solve quadratic equations (polynomial equations of the second degree). The general form of a quadratic equation is, where x represents a variable, and a, b, and c are constants, with. A quadratic equation has two solutions, called roots. A root of a quadratic. Solution by factoring. Section 2: Completing the square. The quadratic formula. The discriminant. Proof of the quadratic formula. Section 3: The graph of y = A quadratic: A parabola. A QUADRATIC is a polynomial whose highest exponent is 2. ax² + bx + c. The coefficient of x ² is called the leading coeffieient. Question 1. One simple way to solve quadratic equations is to set each factor equal to zero and then solve for each factor. However, when the quadratic equation is difficult to solve, the quadratic formula is used to find the solutions. 1. an equation in which the highest power of an unknown quantity is a square. 2. a polynomial of the second degree. Familiarity information: QUADRATIC used as a noun is rare. • QUADRATIC (adjective). The adjective QUADRATIC has 2 senses: 1. of or relating to or resembling a square. 2. of or relating to the second power. Familiarity information: QUADRATIC used as an adjective is rare. more ... An equation where the highest exponent of the variable (usually x) is a square (2). It is usually written ax2+bx+c = 0 Example: 2x2+5x-3 = 0. Quadratic Equation. An equation where the highest exponent of the variable (usually x) is a square (2). It is usually written ax2+bx+c = 0 Example: 2x2+5x-3 = 0. See: Exponent. Quadratic Equations. The Quadratic Formula Explained (page 1 of 3). Often, the simplest way to solve  ax2 + bx + c = 0  for the value of x is to factor the quadratic, set each factor equal to zero, and then solve each factor. But sometimes the quadratic is too messy, or it doesn't factor at all, or you just don't feel like factoring. The Quadratic Formula is derived from the process of completing the square, and is formally stated as: For ax2 + bx + c = 0, the value of x is given by: For the Quadratic Formula to work, you must have your equation arranged in the form (quadratic) = 0 . Also, the  2a  in the denominator of the Formula is underneath everything above, not just the square root. And it's a  2a  under there, not just a plain  2 . −4 and 2 are the solutions to the quadratic equation. They are the roots of that quadratic. Conversely, if the roots are a and b say, then the quadratic can be factored as. (x − a)(x − b). A root of a quadratic is also called a zero.
An equation where the highest exponent of the variable (usually x) is a square (2).  It is usually written ax2+bx+c = 0.