What is a Quadratic Equation. Simplify each equation then use the method of your choice to solve the system of equations for a b and c. Write the quadratic equation in vertex form and sketch its graph.
Completing the square is another way to find the vertex of a quadratic equation.
Using the Vertex Formula 1. Draw the graph by hand then photograph or scan your graph. Multiply by some positive constant in this case 2. Plug the result from step 2 into the original quadratic.