A. Quadratic Formula x =

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

1. The value of (b² - 4ac) tells how many solutions or x-intercepts the quadratic equation will have.
   • If (b² - 4ac) > 0, there are two real solutions or x-intercepts
   • If (b² - 4ac) = 0, there is one real solution or x-intercept.
   • If (b² - 4ac) < 0, there are no real solutions or x-intercepts.