Algebra I Recipe: The Quadratic Formula

Quadratic Formula x =

1. Set the equation equal to zero.
2. Determine the values of a, b, c.
3. Substitute the values into the formula.
4. Simplify using order of operations.
• Once simplified, for the ±, set up one equation with "+" and another with "-".
5. These x-values are the solutions as well as the x-intercepts of the graph.

Practice Problems