Type f x x2 in cell B1. Then click on the Insert tab. In the below picture we calculate the roots of the quadratic functions.
Calculate the Equation from the Parameters.
A quadratic regression models a relationship using a single curve such as the too much of a good thing effect. Within the Charts group click on the. Its easy to calculate y for any given x. It is sometimes difficult to know when to apply quadratic regression but creating a scatterplot and adding a quadratic trendline can help you.