Mathematics in the format of the exam. A basic level of. The simplest mathematical models

This book is final in a series of small books in preparation for the basic exam in mathematics. 20 tasks of the upcoming exam are thematically divided into 4 parts of 5 tasks.
The fourth book in this series is devoted to the analysis of tasks from the section Construction and study of the simplest mathematical models. 5 tasks of the basic exam in mathematics with numbers are devoted to this topic: 8, 10, 12, 18, 20.
The book consists of three parts. The first part considers theoretical issues related to these tasks. The second part is devoted to the analysis of the relevant tasks. The third part proposes a series of training options with these tasks.
A series of books will be useful to all graduates of the school: both those who pass only the basic exam in mathematics, and those who are preparing for the profile exam. In this case, it can be considered as an important step in such preparation