Course No: MTH111 Credits: 4 Date: June 2010 Course Title: College Algebra Institution: Rogue Community College Type of Course: Transfer Length of Course: A minimum of forty (40) lecture hours for one term. Prerequisites: MTH95 or appropriate scores on RCC placement test. Department Assignment: Mathematics Department Mission Relationship: MTH111 reinforces traditional mathematics concepts and learning techniques with current graphic calculator technology emphasizing technical reading/writing and creative thinking skills. Course Description: First course in the transfer mathematics sequence for science, mathematics, and engineering students, and for general education math credit. Course topics include: polynomial and rational functions, exponential and logarithmic functions, and systems of equations and inequalities. Expected Outcomes: Assessment Methods: 1. Use mathematical problem solving techniques involving polynomial and rational functions, exponential and logarithmic functions, and systems of equations. These techniques include data fitting and the use of graphical, symbolic, and narrative, and tabulr methods of analysis. 1. Criterion-referenced tests and quizzes for specific vocabulary, skills, concepts, and daily problem assignments. ISLO: Expresses ideas clearly in oral, written and visual work; Locates, organizes, analyzes, and interprets data; Integrates previous and new learning, along with practical skills, and solve problems; Uses numeracy skills for interpretation, synthesis, and analysis of data. Homework, tests, group work, class discussions, and instructor observation. 2. Communicate mathematical thoughts and ideas using verbal and written skills by creating mathematical models of real world situations. 2. Criterion-referenced tests and quizzes for specific vocabulary, skills, concepts, daily problem assignments, in-class observations, and project completion and presentations. 1 ISLO: Expresses ideas clearly in oral, written and visual work; Locates, organizes, analyzes, and interprets data; Uses numeracy skills for interpretation, synthesis, and analysis of data. Homework, tests, group work, class discussions, and instructor observation. 3. Use inductive and deductive reasoning to develop and verify mathematical arguments. 3. Criterion-referenced tests and quizzes for specific vocabulary, skills, concepts, and daily problem assignments. ISLO: Envisions creative approaches to issues and problems; Uses numeracy skills for interpretation, synthesis, and analysis of data. Homework, tests, group work, class discussions, and instructor observation. 4. Participate in problem solving exercises. 4. Daily problem assignments, in-class observations, and project completion and presentations. ISLO: Envisions creative approaches to issues and problems; Integrates previous and new learning, along with practical skills, and solve problems Homework, tests, group work, class discussions, and instructor observation. 5. Use appropriate technology to enhance mathematical thinking and understanding and to solve mathematical problems and judge the reasonableness of their results. 5. Daily problem assignments, in-class observations, and project completion and presentations. ISLO: Locates, organizes, analyzes, and interprets data; Uses numeracy skills for interpretation, synthesis, and analysis of data. Homework, tests, group work, class discussions, and instructor observation. 6. Complete assignments/projects that encourage independent, nontrivial exploration of situations best modeled by polynomial, rational, exponential, logarithmic, or systems of equations. 6. In-class observation, and project completion and presentations. ISLO: Internalizes and assimilates information into new situations; Demonstrates ability to transfer learning in familiar and unfamiliar contexts in order to complete tasks Homework, tests, group work, class discussions, and instructor observation. Typical Required and Recommended Text(s): Robert Blitzer, Pre-calculus, 4th edition, Prentice Hall Publishing, 2010 Typical Required and Recommended Equipment and Materials: Graphing calculator (TI83, TI-83 Plus, or TI-84 Plus are recommended), graph paper, pencil, paper, and notebook. 2 TYPICAL COURSE OUTLINE: Functions and Graphs (approx. 25% of course) Graphs and Graphing Utilities Plot points in the rectangular coordinate system Graph equations in the rectangular coordinate system Interpret information about a graphing utility’s viewing rectangle or table Use a graph to determine intercepts Interpret information given by graphs Basics of Functions and Their Graphs Find the domain and range of a relation Determine whether a relation is a function Determine whether an equation represents a function Evaluate a function Graph functions by plotting points Use the vertical line test to identify functions Obtain information about a function from its graph Identify the domain and range of a function from its graph Identify intercepts from the function’s graph Identify intervals on which a function increases, decreases or is constant Use graphs to locate relative maxima or minima Identify even or odd functions and recognize their symmetries Understand and use piecewise functions Find and simplify a function’s difference quotient Linear Functions and Slope Calculate a line’s slope Write the point-slope form of the equation of a line Write and graph the slope-intercept form of the equation of a line Graph horizontal or vertical lines Recognize and use the general form of a line’s equation Use intercepts to graph the general form of a line’s equation Model data with linear functions and make predictions Find slopes of equations of parallel and perpendicular lines Interpret slope as rate of change Find a function’s average rate of change Transformations of Functions Recognize graphs of common functions Use vertical shifts to graph functions Use horizontal shifts to graph functions Use reflections to graph functions Use vertical stretching and shrinking to graph functions Use horizontal stretching and shrinking to graph functions Graph functions involving a sequence of transformations Combinations of Functions; Composite Functions Find the domain of a function Combine functions using the algebra of functions, specifying domains 3 Form composite functions Determine domains for composite functions Write functions as compositions Inverse Functions Verify inverse functions Find the inverse of a function Use the horizontal line test to determine if a function has an inverse function Use the graph of a one to one function to graph its inverse function Find the inverse of a function and graph both functions on the same axes Distance and Midpoint Formulas; Circles Find the distance between two points Find the midpoint of a line segment Write the standard form of a circle’s equation Give the center and radius of a circle whose equation is in standard form Convert the general form of a circle’s equation to standard form Modeling with Functions Construct functions from verbal descriptions Construct functions from formulas (geometric, economic, banking, distance etc.) Polynomial and Rational Functions (approx. 25% of course) Complex Numbers Add and subtract complex numbers Multiply complex numbers Divide complex numbers Perform operations with square roots of negative numbers Solve quadratic equations with complex imaginary solutions Quadratic Functions and Their Graphs Recognize characteristics of parabolas Graph parabolas Determine a quadratic function’s minimum or maximum value Solve problems involving a quadratic function’s minimum or maximum value Polynomial Functions and Their Graphs Identify polynomial functions Recognize characteristics of graphs of polynomial functions Determine end behavior of polynomials Use factoring to find zeros of polynomial functions Identify zeros and their multiplicities Use the Intermediate Value Theorem Understand the relationship between degree and turning points Graph polynomial functions Dividing Polynomials; Remainder and Factor Theorems Use long division to divide polynomials Use synthetic division to divide polynomials Evaluate a polynomial using the Remainder Theorem Use the Factor Theorem to solve a polynomial equation Zeros of Polynomial Functions 4 Use the Rational Root Theorem to find possible rational zeros Find zeros of a polynomial function Solve polynomial equations Use the Linear Factorization Theorem to find polynomials with given zeros Use Descartes’ Rule of Signs Rational Functions and Their Graphs Find the domains of rational functions Use arrow notation Identify vertical asymptotes Identify horizontal asymptotes Use transformations to graph rational functions Graph rational functions Identify slant asymptotes Solve applied problems involving rational functions Polynomial and Rational Inequalities (minor importance) Solve polynomial inequalities Solve rational inequalities Solve problems modeled by polynomial or rations inequalities Modeling Using Variation Solve direct variation problems Solve inverse variation problems Solve combined variation problems Solve problems involving joint variation Exponential and Logarithmic Functions (approx. 25% of course) Exponential Functions Evaluate exponential functions Graph exponential functions Evaluate functions with base e Use compound interest formulas Logarithmic functions Change from logarithmic to exponential form Change from exponential to logarithmic form Evaluate logarithms Use basic logarithmic properties Graph logarithmic functions Find the domain of a logarithmic function Use common logarithms Use natural logarithms Properties of Logarithms Use the product rule Use the quotient rule Use the power rule Expand logarithmic expressions Condense logarithmic expressions Use the change-of-base property 5 Exponential and Logarithmic Equations Use like bases to solve exponential equations Use logarithms to solve exponential equations Use the definition of a logarithm to solve logarithmic equations Use the one-to-one property of logarithms to solve logarithmic equations Solve applied problems involving exponential and logarithmic equations Exponential Growth and Decay; Modeling Data Model exponential growth and decay Use logistic growth models Use Newton’s Law of Cooling Choose an appropriate model for data Express an exponential model in base e Systems of Equations and Inequalities (approx. 25% of course) Systems of Linear Equations in Two Variables Decide whether an ordered pair is a solution of a linear system Solve linear systems by substitution Solve linear systems by addition Identify systems that do not have exactly one ordered pair solution Solve problems using systems of linear equations Systems of Linear Equations in Three Variables Verify the solution of a system of linear equations in three variables Solve systems of linear equations in three variables Solve problems using systems in three variables Systems of Nonlinear Equations in Two Variables Recognize systems of nonlinear equations in two variables Solve nonlinear systems by substitution Solve nonlinear systems by addition Solve problems using systems of nonlinear equations Systems of Inequalities Graph a linear inequality in two variables Graph a nonlinear inequality in two variables Use mathematical models involving linear inequalities Graph systems of inequalities Linear Programming Write an objective function describing a quantity that must be maximized or minimized Use inequalities to describe limitation in a situation Use linear programming to solve problems 6