Proof * used for complex conjugate QUADRATIC FUNCTION A quadratic function has the general form and its graph is a parabola. If are real values of for which the quadratic function then the curve will intersect x the X axis at the values of given by the formula x Two real roots when the parabola crosses the X axis twice = 0.5806 x1 = -1.9139 x2 When the parabola touches the X axis at one point, there is only one real root = = -0.6667 x1 x2
Proof * used for complex conjugate QUADRATIC FUNCTION A quadratic function has the general form and its graph is a parabola. If are real values of x for which the quadratic function then the curve will intersect the X axis at the values of x given by the formula Two real roots when the parabola crosses the X axis twice x1 = 0.5806 x2 = -1.9139 When the parabola touches the X axis at one point, there is only one real root x1 = x2 = -0.6667