This method can be used to derive the quadratic formula, which is used to solve quadratic equations. We have already seen that completing the square is a useful method to solve quadratic equations. When we are asked to solve a quadratic equation, we are really being asked to find the roots. Therefore, a quadratic function may have one, two, or zero roots.
A quadratic function is graphically represented by a parabola with vertex located at the origin, below the x-axis, or above the x-axis. Roots are also called x -intercepts or zeros. In this section, we will learn how to find the root(s) of a quadratic equation.
Roots of Quadratic Equations and the Quadratic Formula Biology Project > Biomath > Quadratic Function > Roots of Quadratic Equations Quadratic Functions
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