Activity 4: Understanding a Model of Linear Growth
This activity takes one example model for the previous activity and analyzes it further. Emphasizing the different representations of the model (graphical, numerical, symbolic) and the relationship between the model and the data. Students seem to have trouble understanding what exactly the model is and how it relates to the data.
For more help with fitting models in Desmos: https://support.desmos.com/hc/en-us/articles/202532159-Regressions
However most of the time we help students develop their own models and we do not use the regression aspect of Desmos. Instead we have them graph the model they come up with and check it against the data and improve accordingly.