Math 1050 course objectives Students will be able to: • solve quadrating equations by factoring, using the square root method, by completing the square, or by using the Quadratic Formula • rewrite square roots of negative numbers as complex numbers • perform arithmetic operations on complex numbers and rewrite the result in standard form a + bi • solve rational equations • solve equations involving radicals • solve equations quadratic in form using substitution • solve equations by factoring • identify inequalities with intervals (their solution sets) • find the union and intersection of intervals • apply the method of test points and test intervals of solving different types of inequalities (linear, quadratic, polynomial, rational) • identify that a relation is a function (in particular, using the vertical line test) • identify domains and ranges of relations (functions in particular), in particular from the graph • interpret different ways of defining a relation (a function in particular) • interpret function notation • evaluate functions • find domains of functions (the three conditions) • solve applied problems using functions • verify if a function is even, odd, or neither • identify (from the graph) intervals on which the function is increasing, decreasing, or constant • identify (from the graph) relative maximum and minimum values • find the average rate of change of a function √ √ • draw and recognize the shapes of basic functions’ graphs (y = x, x2 , x3 , x, 3 x, x1 , |x|) 1 • use the Diagram of Transformations to graph transformations of basic functions or identify a transformation of a function from the graph • graph piecewise-defined functions • form and evaluate arithmetic combinations of functions and state their domain • form and evaluate compositions of functions • state the domain of a composite function • decompose a function • use the concept of composite functions in applications • identify if a function is one-to-one, in particular using the horizontal line test • verify if two functions are inverses of each other • graph inverse functions • determine domains and ranges for a pair of inverse functions • find the formula for the inverse function (if the inverse function exists) • use the concept of inverse functions in applications End of Exam 1 material • transform the formula defining a quadratic function to vertex (standard) form • identify the coordinates of the vertex of the parabola from vertex form • graph a quadratic function in vertex form (using the diagram of transformations) • identify the quadratic function from the graph • solve optimization problems by finding the appropriate coordinate(s) of the vertex of the quadratic function modeling the quantity to be optimized • identify the leading term (in particular, the leading coefficient and degree) of a polynomial from expanded or factored form • determine the end-behavior of polynomial functions • identify the multiplicity of a zero of a polynomial • use the multiplicity of a real zero to determine if the graph crosses or touches the x-axis at the zero 2 • find the y-intercept of the graph of a polynomial function • factor polynomials (over the reals, as a product of linear and irreducible over the reals quadratic factors; and completely over the complexes, as a product of linear factors corresponding to all, including complex, zeros) • identify zeros and their multiplicities from the factored form of a polynomial • write the factor corresponding to the given zero • find a polynomial with given zeros (with multiplicities) • divide polynomials using long and synthetic (where applicable) division • identify the quotient and remainder of the division of polynomials • use synthetic division to: evaluate polynomials, divide polynomials, verify zeros of polynomials, and perform partial factorization • find real zeros of polynomials and their corresponding factors • use the Remainder and Factor Theorems • determine and use the list of possible rational zeros • find the possible number of positive and negative zeros of polynomials using Descartes Rule of Signs • use the Conjugate Pairs Theorem to find zeros of polynomials • multiply the factors corresponding to the pair of complex conjugate zeros • solve polynomial inequalities (by graphing/sketching) • graph polynomial functions by hand • find the domain of a rational function • identify vertical asymptotes and holes of a rational function, if any • identify the horizontal asymptote of a rational function, if applicable • find the equation of the slant (oblique) asymptote of a rational function, if applicable • identify the y- and x-intercepts of a rational function, if any • graph rational functions by hand (with the aid of a table of points, if needed) • determine the limiting, or “long run” behavior of a rational function in applications 3 • graph a simple exponential function or a transformation of such (using the diagram of transformations) • recognize graphs of simple exponential functions or transformations of such and identify the function from the graph • identify the domain and range of an exponential function • evaluate exponential functions • evaluate expressions involving the number e • use (in particular, evaluate) formulas involving exponential functions • convert between the exponential and equivalent logarithmic form • find the domain of an expression involving logarithms. • graph a simple logarithmic function or a transformation of such (using the diagram of transformations) • recognize graphs of simple logarithmic functions or transformations of such and identify the function from the graph • identify the domain and range of a logarithmic function • evaluate “simple” logarithms without using a calculator • use formulas involving logarithmic functions • expand (rewrite as a sum or difference of possibly constant multiples of logarithms) and condense (rewrite as a single logarithm) logarithmic expressions using the rules of logarithms • evaluate (or approximate) logarithms using the Change of Base formula (and a calculator) • solve exponential and logarithmic equations (using the one-to-one property, or rewriting in equivalent exponential/logarithmic form) • solve exponential equations quadratic in type that require a substitution • recognize equations that don’t require a solution process • use initial values to find exact models (especially for the exponential growth/decay models) • use a (provided) formula to answer application questions • recognize if the application question is about the argument or value, and write the appropriate equation 4 • interpret half-life • use logarithmic scales • use a calculator to approximate answers • determine the limiting value (or carrying capacity) in the logistic model • solve for a specific unknown in exponential and logarithmic models End of Exam 2 material • solve systems of linear equations using substitution, elimination or any matrix method (Gaussian elimination with back-substitution, Gauss-Jordan elimination, or using the inverse matrix) • identify the order of a matrix • write the augmented matrix corresponding to a system of linear equations • write a system of linear equations as a matrix equation • find a row-echelon form or the reduced row-echelon form of a matrix using elementary row operations • label elementary row operations • recognize if a matrix is in a row-echelon form or the reduced row-echelon form • find the reduced row-echelon form of a matrix using a calculator • interpret the reduced row-echelon form of an augmented matrix corresponding to a system of linear equations to identify the solution set of the system • write the infinite solution set using parameters for free variables • add, subtract, or multiply matrices by a scalar • multiply matrices, if possible • determine if a square matrix is invertible and find the inverse matrix using elementary row operations or a calculator • perform partial fraction decomposition on proper fractions • graph solution sets to systems of linear or nonlinear inequalities in two variables • determine the consumer and producer surplus provided the demand and supply equations 5 • determine extreme values of linear functions of two variables over polygonal regions using linear programming • solve systems of nonlinear equations algebraically 6 Students will know : • the defining property of i: i2 = −1 • the “old” methods of factoring • the zero-product property • the square root property • the definition of a relation and a function • function notation • the definition of an even and odd function • the Diagram of Transformations • the shapes and “standard” guide points for the graphs of basic functions • the definitions of arithmetic combinations of functions • the definition of a composite function • the conditions for the domain of a composite function • that only one-to-one functions have inverse functions • the verification equations for inverse functions • the relationship between the graphs of inverse functions • the general and vertex (standard) forms of a quadratic function • the formulas for h and k (the coordinates of the vertex of the parabola) • the terminology connected with polynomials (the degree, leading coefficient, leading term, constant term, multiplicity of a zero) • the relationship between the zeros of a polynomial and their corresponding factors • long division of polynomials • synthetic division and its applications • the Remainder and Factor Theorems • the list of possible rational zeros • different “levels” of factoring (over the reals; over the complexes) 7 • the Fundamental Theorem of Algebra and its corollaries • the complex conjugate zeros property • the list of possibilities for a horizontal asymptote of rational functions • how the graph of a rational function behaves with respect to vertical, slant, and horizontal asymptotes • the definition and properties of simple exponential functions f (x) = bx and their graphs • the natural base e • the continuously compounded interest formula • the definition and properties of simple logarithmic functions f (x) = logb (x) and their graphs • the three conditions for the domain of functions (no zeros in denominators, no negatives under even index radicals, and strictly positive arguments of logarithms) • the “inverse” relationship between exponential and logarithmic functions with the same base • the definition of the common and natural logarithm • the Change of Base formula • the one-to-one property for exponential and logarithmic functions • the exponential growth/decay model • matrix methods for solving systems of linear equations • matrix algebra rules • the cases of partial fraction decomposition 8
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