You will now be finding quadratic functions rules to model a set of given data. Think of the scatter plots from math 1. You identified the line of regression for a set of given points, and used it to make predictions. The same can be done with quadratic regression models. See the scatterplot below and how it resembles a quadratic function. Watch the video below to learn how to put in the data points, find the regression equation and how to use it.
In the 6 questions below you will be practicing using the calculator to find the regression equations. Check you answers when you have finished.
Now try the application problems. The process remains the same, but once you find the equation you will use it to make predictions.