The quadratic function: variation, transparency and two types of examples. Advances of Research in Mathematics Education, [S. l.], n. 3, p. 45–68, 2013. DOI: 10.35763/aiem.v0i3.62. Disponível em: https://aiem.es/aiem/article/view/3833. Acesso em: 20 may. 2026.