LESSON: Predicting Unknown Values

Predicting Unknown Values

Trendlines and regression equations are great tools for us to use when we want to predict unknown values in our data set. Watch the videos below to see examples of this.

Two vocabulary words to keep in mind and in your notes:

Interpolation: predicting unknown values within the domain of observed values

Extrapolation: predicting unknown values outside the domain of observed values

(In my example videos I use the online graphing calculator found at www.desmos.com/calculator.)

Part 1

Part 2

Please keep in mind that a lower case "e" is different than an upper case "E". 

Watch the lesson video below to learn what to do with regression equations that have uppercase E's in them.