2022-07-052022-07-052021-11-22SOUSA, Sara Everlen de Sá. Aplicação de função poligonal no cálculo do imposto de renda. 2021. Trabalho de Curso (Licenciatura em Matemática) – Faculdade de Matemática, Campus Universitário de Castanhal, Universidade Federal do Pará, Castanhal, 2021. Disponível em: https://bdm.ufpa.br:8443/jspui/handle/prefix/4148. Acesso em:.https://bdm.ufpa.br/handle/prefix/4148Mathematics gives us the possibility to come up with similar answers to the same problem through different ways of solving them. As in our daily lives, where it is common for some occasions to contain simple mathematical facts such as the time needed to travel a certain distance or even requiring more specific knowledge such as the amount allowed and the hunting period for a certain animal without interfering with the ecosystem. It is believed that several mathematical contents can be related to each other, because they address equivalent topics or because they have common applications. When we relate teaching and learning to the use of applications, we can obtain a better understanding of the content. Given this, the present work proposes the use of the theory of Affine Function and Polygonal Function, in the calculation of an individual's income tax.Acesso AbertoFunção afimFunção poligonalImposto de rendaAffine functionPolygonal functionIncome taxCNPQ::CIENCIAS EXATAS E DA TERRATrabalho de Curso - Graduação - Monografia