X 3 and is hard to solve so let us graph it instead. Using the below quadratic formula we can find the root of the quadratic equation. Using The Vertex Formula Quadratic Functions Lesson 2 Graphing Linear Equations Quadratics Vertex If the quadratic function is set equal to zero then the result is a quadratic equationThe solutions to the univariate equation are called the roots of. . In addition we introduce piecewise functions in this section. For example a univariate single-variable quadratic function has the form in the single variable xThe graph of a univariate quadratic function is a parabola whose axis of symmetry is parallel to the y-axis as shown at right. The orbit of the critical point. Y-Intercept Overview Definition. In interval notation we can write. If bb 4ac then roots are complex not real. The standard form is ax² bx c 0 with a b and c being constants or numerical coefficients and x being a