Estudo de função afim através da modelagem matemática.

Abstract

In this work, we propose the use of mathematical modeling as a tool in the study of functions. With this goal, we suggest an activity related to choosing the best mobile phone plan between three companies. This activity is focused on the basic principles of mathematical modeling, from the choice of the topic and the assumptions made in the process to the obtention of an affine function (object of study) that models the cost of each company, concluding with a critical analysis of the found results. This activity was developed intending to motivate students, using the interest that it can arouse in a process that will help them consolidate the concept of function, be autonomous, able to think and build their own strategies for solving problems. The proposal is appropriate for students in the first year of high school and assumes that students have already built the basic concepts involved in this subject.