Polynomial Curve Fitting
GeoGebra has versatile commands to fit a curve defined very generally in a data. This GeoGebra applet can be used to enter data, see the scatter plot and view two polynomial fittings in the data (for comparison), If only one fit is desired enter 0 for Degree of Fit2 (or Fit1). If a data value is wrongly entered, select the correct check box and use use appropriate correct button to delete the (last) wrongly entered value. Selecting show fits check box displays equations as well as graphs. Selecting Instructions check box displays instructions.
For polynomial approximation check my online book
"Flipped Classroom Calculus of Single Variable"
https://versal.com/learn/vh45au/
