Ax 2 bx c 0. A quadratic formula is the solution of a quadratic equation ax2 bx c 0 where a 0 given by. And so the zeros are the input values that make the value of the function equal to zero.
Sal finds the zeros the vertex the line of symmetry of quadratic functions given in vertex form factored form standard form.
The Quadratic Formula is derived from the process of completing the square and is formally stated as. For ax 2 bx c 0 the values of x which are the solutions of the equation are given by. Graphing any of those equations will give you a smooth exponential upward curve. A quadratic formula is the solution of a quadratic equation ax2 bx c 0 where a 0 given by.