The first thing would be the formula (below). This formula can be used for any equation and will always work. The only disadvantage of it would be that it takes a long time to solve.

The next thing would be the vertex, the vertex is the line of symmetry and the very top of the graph if it is a happy graph (min) or the bottom point of the graph in an unhappy graph (max).

The third thing that I learned would be about using the equations to solve. When you are doing a question or an equation the best one to do would either be factoring or Quadratic formula. Graphing would be the last one that you chose to do in less they ask. The only advantage of graphing is that you can see the equation and you know what you are “dealing” with.