It contains several solved exercises and a step-by-step explanation of how to analyze a polynomial equation, indicating how its intersection, its symmetry, extension, asymptotes, tabulation and graph with respect to each of its axes and the origin of the Cartesian plane are identified.
It is very useful for those who are studying the first subject of analytic geometry at the high school level with Lehmann's book, since it contains the analysis of several quadratic, cubic, linear and polynomial equations.
All of the above, as determined by the first fundamental problem of analytic geometry.