In this tutorial youll see how to use the graph of a quadratic equation to find the zeros of the equation. To find the zeros Vertex Min and Max we first need to understand the basics of a parabola. Find the zeros of the function f x x 2 8 x 9.
Use synthetic division to evaluate a given possible zero by synthetically dividing the candidate into the polynomial.
We can use the Rational Zeros Theorem to find all the rational zeros of a polynomial. Find zeros of a quadratic function by Completing the square. Before you begin this tutorial make sure that you can confidently plot ordered pairs on a Cartesian Plane. The zeros of a quadratic equation are the points where the graph of the quadratic equation crosses the x-axis.