Compare the calculations displayed in GeoGebra with the calculations you completed in parts A through D. Look in the Algebra mar
gin too. Do the results in GeoGebra match the results you obtained earlier? If not, where do the discrepancies occur? You might have to rearrange equations algebraically to determine whether two equations match. plato
Please refer to the solution that I posted for Part E of the exercise. It is clear that our calculations by hand totally agree with those obtained from the software. The use of Geogebra has proved that we did the exercise correctly and the results are what should be expected from this exercise.