The ''U'' shaped graph of a quadratic is called a parabola. A quadratic equation has two solutions. Either two distinct real solutions, one double real solution or two imaginary solutions.
All methods start with setting the equation equal to zero.
Solve for x in the following equation. The quadratic formula is . In the equation , a is the coefficient of the term, b is the coefficient of the x term, and c is the constant. The graph of is nothing more than the x-axis. So what you will be looking for is where the graph of crosses the x-axis.