Elementary geometry in the plane, analytic geometry of the plane. Trigonometry; definitions and properties for powers with integer and rational exponents, exponentials and logarithms. Polynomials, Ruffini’s rule; main elementary functions, their properties and cartesian representation. Polynomials of I and II degree in one or two variables and their graphics (straight lines, parabolas, circumferences, iperbolas). Trigonometric functions (sinus, cosinus, tangent, cotangent), exponential and logarithmic functions. Solving equations and systems of elementary equations and inequalities, of the first and second degree, of rational, exponential, logaritmic, trigonometric type. Elementary knowledge about set theory, natural, integer, rational and real numbers.