The derivative has many practical applications in various areas, such as physics, economics, engineering, and the natural sciences. For example, it is used in the modeling of physical phenomena, in the optimization of functions, in the analysis of speed and acceleration of moving objects, and in the determination of rates of change in economic situations.[br]In this book we will focus on the practical part and the methods used to solve it, showing its graphs, and the ways in which we can apply them.