Radnor High School Course Syllabus Modified 09/01/2011 Advanced Algebra 2 (College Prep) 0434 General Information Credits: 1.0 Credits Weighted: Unweighted Prerequisite: Advanced Geometry Length: Full Year Format: Meets Daily Grade: 10, 11 Course Description This course reviews and extends an understanding of the number system, formulas, equations and graphs. Subject matter includes quadratics, radicals, exponents, complex numbers and the mathematical concept of function. Logarithms, exponential functions and theory of equations are introduced during the course. This course involves the use of a graphing calculator to develop and practice concepts, rather than the theoretical approach used in Honors Algebra 2. Students are expected to handle an appropriate workload at a moderate pace. MARKING PERIOD ONE EQUATIONS AND INEQUALITIES LINEAR EQUATIONS AND FUNCTIONS SYSTEMS OF LINEAR EQUATIONS AND INEQUALITIES Common Core Standards Common Core Standards A-APR.1. Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials. A-APR.3. Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial. A-APR.6. Rewrite simple rational expressions in different forms; write a(x)/b(x) in the form q(x) + r(x)/ b(x), where a(x), b(x), q(x), and r(x) are polynomials with the degree of r(x) less than the degree of b(x), using inspection, long division, or, for the more complicated examples, a computer algebra system. A-APR.7. (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions. A-CED.1. Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions. A-CED.2. Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales. A-CED.3. Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context. For example, represent inequalities describing nutritional and cost constraints on combinations of different foods. A-CED.4. Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. For example, rearrange Ohm’s law V = IR to highlight resistance R. A-REI.1. Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method. A-REI.2. Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise. A-REI.6. Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables. A-REI.7. Solve a simple system consisting of a linear equation and a quadratic equation in two variables algebraically and graphically. For example, find the points of intersection between the line F-LE.2. Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table). F-LE.5. Interpret the parameters in a linear or exponential function in terms of a context. A-REI.10. Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line). A-REI.11. Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.★ A-REI.12. Graph the solutions to a linear inequality in two variables as a half-plane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of the corresponding half-planes. Keystone Connections: Student Objectives: At the end of the first marking period, students should be able to successfully manage the following skills: Solve linear equations by using the addition and/or multiplication properties of equality Solve linear equations by using the distributive property Solve linear inequalities by using the addition and/or multiplication properties of equality Solve linear inequalities by using the distributive property Solve linear inequality a x b Solve application problems with inequalities Define absolute value Solve various absolute value problems, including special cases of absolute value and inequalities Distinguish between independent and dependent variables Define and identify relations and functions Find domain and range for specific functions and/or relations Use function notation, and identify functions defined by graphs and equations Solve 2 equation linear systems by graphing, substitution and elimination Solve special systems (dependent and inconsistent) Use a graphing calculator to assist in solving systems of equations Solve an inequality in the form of ax b c and ax b c Materials & Texts Larson, Boswell, Kanold, Stiff (2001). Algebra 2. Evanston, IL: McDougal Littell Inc. ISBN 789-DWO-03 02 Activities, Assignments, & Assessments ACTIVITIES Use properties of equality to solve linear equations Use the distributive property to solve linear equations Solve linear equations with fractions and decimals Use properties of equality to solve linear inequalities Use the distributive property to solve linear inequalities Use all properties to solve a x b Use all properties to solve applications problems with inequalities Define absolute value Solve an absolute value equation Solve one-way absolute value inequalities, such as 2 x 1 7 and/or 2 x 1 7 Solve an absolute value equation that requires rewriting Solve an equation with 2 absolute values, such as ax b cx d Define and use the definitions of relation and function Determine whether relations are functions Find domain and range of relations and functions from various sources Use the 'vertical line test' Identify functions from their equations Write equations using function notation Graph linear and constant functions, using function notation to express the graphs Decide whether an ordered pair is a solution to a system of equations Solve a system of equations by graphing, substitution and elimination Determine the number of solutions a system of equations has Define Dependent and Inconsistent systems, and solve those types of systems ASSIGNMENTS Assignments for this and all marking periods can be found at the High School Math Department website under Advanced Algebra 2 HW. Assignment sheets will be distributed periodically throughout the school year. Homework will be assigned on a daily basis. Individual assignments for each chapter can be viewed on the Mathematics Department page of Radnor High School’s web site. ASSESSMENTS Grades will be based on quizzes and tests. In addition, teachers may use homework, group activities, and/or projects for grading purposes. All students will take departmental midyear and final exams. The Radnor High School grading system and scale will be used to determine letter grades. Terminology Whole numbers, integers, rational numbers, irrational numbers, origin, graph, coordinate, dimensional analysis, numerical expression, base, exponent, power, order of operations, variable, algebraic expression, term, coefficient, like terms, equation, solution, equivalent, formulas, verbal model, algebraic model, linear inequalities, graph, compound inequalities, absolute value. Relation, domain, range, function, ordered pair, coordinate plane, equation, solution, independent variable, dependent variable, graph, linear function, function notation, slope, parallel, perpendicular, y-intercept, slope-intercept form, standard form, x-intercept, direct variation, constant of variation, scatterplot, positive correlation, negative correlation, no correlation, linear inequalities, compound functions, linear functions as models Media, Technology, Web Resources Teacher-developed documents Calculator based documents http://www.mcdougallittell.com MARKING PERIOD TWO QUADRATIC FUNCTIONS COMPLEX NUMBERS PROPERTIES OF EXPONENTS Common Core Standards N-RN.2. Rewrite expressions involving radicals and rational exponents using the properties of exponents. N-CN.1. Know there is a complex number i such that i2 = –1, and every complex number has the form a + bi with a and b real. N-CN.2. Use the relation i2 = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers. A-SSE.2. Use the structure of an expression to identify ways to rewrite it. For example, see x4 – y4 as (x2)2 – (y2)2, thus recognizing it as a difference of squares that can be factored as (x2 – y2)(x2 + y2). A-SSE.3. Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. A-APR.3. Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial. A-REI.4. Solve quadratic equations in one variable. Solve quadratic equations by inspection (e.g., for x2 = 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b. A-REI.7. Solve a simple system consisting of a linear equation and a quadratic equation in two variables algebraically and graphically. For example, find the points of intersection between the line y = –3x and the circle x2 + y2 = 3. F-IF.7. Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.★ a. Graph linear and quadratic functions and show intercepts, maxima, and minima. c. Graph polynomial functions, identifying zeros when suitable factorizations are available, and showing end behavior. F-LE.1. Distinguish between situations that can be modeled with linear functions and with exponential functions. Keystone Connections: Student Objectives: At the end of the second marking period, students should be able to successfully manage the following skills: Recognize quadratic functions and their corresponding graphs Locate, calculate, recognize, and use the vertex, axis of symmetry, and x-intercepts (zeros) Manipulate quadratic equations in all three forms—standard, vertex, and intercept Factor trinomials and special cases—difference of squares and perfect square trinomial Graph quadratics by hand and using technology Locate a maximum or minimum Use a quadratic model to predict an outcome Solve quadratic equations with single, multiple, and complex solutions Define, use, and manipulate “i” Use complex conjugates Graph and solve quadratic inequalities Solve systems of inequalities involving quadratics Use regression to find a model Use the quadratic formula Use the discriminant to determine the number of real solutions Activities, Assignments, & Assessments ACTIVITIES Explore how an “a-value” effects a standard graph Use patterns, calculations (zpp, -b/2a), and calculators to find the zeros and vertex of a graph Use the same calculations to rewrite equations in different forms Find the greatest common factor of a polynomial Use logic to limit the possible factors of a trinomial Factor trinomials with an a-value. Add, subtract, multiply, and divide using “i” Distribute and use complex conjugates Find the intersection point(s) of a linear equation and a quadratic equation Use a set of data to create a quadratic model and predict further outcomes Determine what happens if the discriminant of a quadratic equation is positive, negative, or zero. ASSIGNMENTS See Marking Period One for location of assignment sheets. Assignment sheets will be distributed periodically throughout the school year. Homework will be assigned on a daily basis. Individual assignments for each chapter can be viewed on the Mathematics Department page of Radnor High School’s web site. ASSESSMENTS Grades will be based on quizzes and tests. In addition, teachers may use homework, group activities, and/or projects for grading purposes. All students will take departmental midyear and final exams. The Radnor High School grading system and scale will be used to determine letter grades. Terminology Quadratic function, parabola, vertex, axis of symmetry, standard form, vertex form, intercept form , binomials, trinomials, factoring, monomial, zeros, radical sign, radicand and radical, rationalizing the denominator, conjugate, complex number, real part, imaginary part, quadratic formula, real solutions, discriminant , quadratic inequalities in one and two variables, best fitting quadratic model, quadratic regression Media, Technology, Web Resources Teacher-developed documents Calculator based documents http://www.mcdougallittell.com MARKING PERIOD 3 POLYNOMIAL FUNCTIONS POWERS, ROOTS AND RADICALS EXPONENTIAL AND LOGARITHMIC FUNCTIONS Common Core Standards A-APR.1. Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials. A-APR.3. Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial. A-APR.6. Rewrite simple rational expressions in different forms; write a(x)/b(x) in the form q(x) + r(x)/b(x), where a(x), b(x), q(x), and r(x) are polynomials with the degree of r(x) less than the degree of b(x), using inspection, long division, or, for the more complicated examples, a computer algebra system. A-APR.7. (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions. A-CED.1. Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions. A-CED.2. Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales. A-CED.3. Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context. For example, represent inequalities describing nutritional and cost constraints on combinations of different foods. A-CED.4. Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. For example, rearrange Ohm’s law V = IR to highlight resistance R. A-REI.1. Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method. A-REI.2. Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise. A-REI.7. Solve a simple system consisting of a linear equation and a quadratic equation in two variables algebraically and graphically. For example, find the points of intersection between the line F-LE.2. Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table). F-LE.5. Interpret the parameters in a linear or exponential function in terms of a context. A-REI.10. Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line). A-REI.11. Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.★ N-CN.1. Know there is a complex number i such that i2 = –1, and every complex number has the form a + bi with a and b real. N-CN.2. Use the relation i2 = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers. N-CN.3. (+) Find the conjugate of a complex number; use conjugates to find moduli and quotients of complex numbers. N-CN.5. (+) Represent addition, subtraction, multiplication, and conjugation of complex numbers geometrically on the complex plane; use properties of this representation for computation. For example, (-1 + √3 i)3 = 8 because (-1 + √3 i) has modulus 2 and argument 120°. N-CN.7. Solve quadratic equations with real coefficients that have complex solutions. N-CN.8. (+) Extend polynomial identities to the complex numbers. For example, rewrite x2 + 4 as (x + 2i)(x – 2i). N-CN.9. (+) Know the Fundamental Theorem of Algebra; show that it is true for quadratic polynomials. Student Objectives: At the end of the third marking period, students should be able to successfully manage the following skills: Evaluate and simplify polynomial functions Add, subtract, and multiply polynomial functions Recognize and factor certain polynomials Solve equations using the zero-product property Add, subtract, multiply, divide and simplify rational expressions Define rational functions and describe their domains Write rational expressions is lowest terms Find a least common denominator Perform standard operations with rational expressions Determine the domain of the variable in a rational equation Solve rational equations Recognize the graph of a rational function Find roots of numbers Solve radical equations Simplify the square root of negative numbers Manipulate and use “i” Activities, Assignments, & Assessments ACTIVITIES Evaluate polynomial expressions Use a greatest common factor to factor polynomial expressions Use the distributive property Remove parentheses from polynomial expressions Simplify expressions with integer exponents Solve equations in factored form using the zero-product property Evaluate and simplify polynomial functions Add, subtract, and multiply polynomials Recognize and factor certain polynomials Solve equations using the zero-product property Add, subtract, multiply, divide, and simplify rational expressions Simplify expressions using rules of exponents Add, subtract and multiply rational numbers Find numbers that are not in the domains of rational functions Write rational expressions in lowest terms Use multiplication and division to combine rational expressions Add and subtract rational expressions that have common denominators Find least common denominators Add and subtract rational expressions that have different denominators Use the distributive property when subtracting rational expressions Determine the domains of the variables in rational equations Solve rational equations Find square roots Identify the graph of a radical function Use the power rule to solve radical equations Use the power rule to square a binomial Simplify square roots of negative numbers Perform operations using “i” Use “i” when raised to a power ASSIGNMENTS See Marking Period One for location of assignment sheets. Assignment sheets will be distributed periodically throughout the school year. Homework will be assigned on a daily basis. Individual assignments for each chapter can be viewed on the Mathematics Department page of Radnor High School’s web site. ASSESSMENTS Grades will be based on quizzes and tests. In addition, teachers may use homework, group activities, and/or projects for grading purposes. All students will take departmental midyear and final exams. The Radnor High School grading system and scale will be used to determine letter grades. Terminology Rational expression, rational function, least common denominator (LCD), rational equation, domain of the variable, asymptote, radicand, index, radical, root, radical expression, radical equation, extraneous solution, imaginary numbers, “i” Media, Technology, Web Resources Teacher-developed documents Calculator based documents http://www.mcdougallittell.com MARKING PERIOD FOUR EXPONENTIAL AND LOGARITHMIC FUNCTIONS RATIONAL EQUATIONS AND FUNCTIONS SEQUENCES AND SERIES Common Core Standards A-APR.7. (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions. A-APR.3. Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial F-IF.1. Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x). F-IF.2. Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context. F-IF.3. Recognize that sequences are functions, sometimes defined recursively, whose domain is a subset of the integers. F-IF.7. Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases. a. Graph linear and quadratic functions and show intercepts, maxima, and minima. b. Graph square root, cube root, and piecewise-defined functions, including step functions and absolute value functions. c. Graph polynomial functions, identifying zeros when suitable factorizations are available, and showing end behavior. d. (+) Graph rational functions, identifying zeros and asymptotes when suitable factorizations are available, and showing end behavior. e. Graph exponential and logarithmic functions, showing intercepts and end behavior, and trigonometric functions, showing period, midline, and amplitude. F-IF.8. Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. a. Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of a context. b. Use the properties of exponents to interpret expressions for exponential functions. For example, identify percent rate of change in functions such as y = (1.02)t, y = (0.97)t, y = (1.01)12t, y = (1.2)t/10, and classify them as representing exponential growth or decay. F-IF.9. Compare properties of two functions each represented in a different way (either algebraically, graphically, numerically in tables, or by verbal descriptions). F-LE.1. Distinguish between situations that can be modeled with linear functions and with exponential functions. Prove that linear functions grow by equal differences over equal intervals, and that exponential functions grow by equal factors over equal intervals. Recognize situations in which one quantity changes at a constant rate per unit interval relative to another. Recognize situations in which a quantity grows or decays by a constant percent rate per unit interval relative to another. F-LE.2. Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table). F-LE.3. Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function. F-LE.4. For exponential models, express as a logarithm the solution to abct = d where a, c, and d are numbers and the base b is 2, 10, or e; evaluate the logarithm using technology. F-LE.5. Interpret the parameters in a linear or exponential function in terms of a context. A-SSE.3. Choose and produce an equivalent form of an expression to reveal and explain properties of the quantity represented by the expression. a. Factor a quadratic expression to reveal the zeros of the function it defines. b. Complete the square in a quadratic expression to reveal the maximum or minimum value of the function it defines. c. Use the properties of exponents to transform expressions for exponential functions. For example the expression 1.15t can be rewritten as (1.151/12)12t ≈ 1.01212t to reveal the approximate equivalent monthly interest rate if the annual rate is 15%. A-SSE.4. Derive the formula for the sum of a finite geometric series (when the common ratio is not 1), and use the formula to solve problems. Student Objectives At the end of the fourth marking period, students should be able to successfully manage the following skills: Define rational functions and describe their domains Write rational expressions is lowest terms Find a least common denominator Perform standard operations with rational expressions Determine the domain of the variable in a rational equation Solve rational equations Recognize the graph of a rational function Find roots of numbers Solve radical equations Define an exponential function Graph an exponential function Solve exponential equations Use exponential functions with growth and decay Define a logarithm Convert between exponential and logarithmic forms Evaluate logarithms Solve logarithmic equations Identify sequences Evaluate sequences Recognize and use sigma notation Identify arithmetic and geometric sequences and series Activities, Assignments, & Assessments ACTIVITIES Add and subtract rational expressions that have common denominators Find least common denominators Add and subtract rational expressions that have different denominators Use the distributive property when subtracting rational expressions Determine the domains of the variables in rational equations Solve rational equations Graph an exponential function with a > 1 Graph an exponential function with 0 < a < 1 Solve exponential equations Explore the difference between growth and decay Apply growth and decay to real world problems Graph logarithmic functions both by hand and on the calculator Explore how and why the graphs shift Solve logarithmic functions Write equations in both logarithmic form and exponential form Identify which form will provide the solution in the simplest way Identify patterns and sequences Explore the difference between an arithmetic sequence and a geometric sequence Solve series’ in sigma notation Explore the difference between an arithmetic series and a geometric series Identify an infinite geometric series ASSIGNMENTS See Marking Period One for location of assignment sheets. Assignment sheets will be distributed periodically throughout the school year. Homework will be assigned on a daily basis. Individual assignments for each chapter can be viewed on the Mathematics Department page of Radnor High School’s web site. ASSESSMENTS Grades will be based on quizzes and tests. In addition, teachers may use homework, group activities, and/or projects for grading purposes. All students will take departmental midyear and final exams. The Radnor High School grading system and scale will be used to determine letter grades.