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Orange Public Schools CCSS Curriculum CONTENT AREA: Mathematics Course: Algebra I UNIT #: 5 UNIT NAME: Quadratic Functions & equations # STUDENT LEARNING OBJECTIVES CORRESPONDING CCSS 1 Sketch the graph of a function that models a relationship between two quantities (expressed symbolically or from a verbal description) showing key features ( including intercepts, minimums/maximums, domain, and rate of change) F.IF.4, F.IF.7 2 3 4 5 6 7 Interpret a quadratic relationship given in a context in the form of a function, verbal description, or graph. Describe and explain the domain and other key features of the relationship and how it relates to the graph. Write a function or equation that describes a quadratic relationship between two quantities given in context. Use these equations to solve problems and interpret answers. Write functions in different but equivalent forms by manipulating quadratic expressions using methods such as factoring and completing the square. Solve quadratic equations in one variable using a variety of methods [including inspection (e.g. x2 = 81), factoring, completing the square, and the quadratic formula]. Recognize and determine when a quadratic equation will produce no real solutions Represent and describe data for two variables on a scatter plot, fit a function to the data, analyze residuals (in order to informally assess fit), and use the function to solve problems. Uses a given function or choose a function suggested by the context. Emphasize linear and exponential models. Major Content Supporting Content Additional Content (Identified by PARCC Model Content Frameworks). F.IF.5, F.IF.4 F.BF.1, A.CED.2 F.IF. 8 A.REI.4 A.REI.4 S.ID.6 Orange Public Schools CCSS Curriculum CONTENT AREA: Mathematics Course: Algebra I UNIT #: 5 UNIT NAME: Quadratic Functions & equations Code # Common Core State Standards A.REI.4 Solve quadratic equations in one variable. a. Use the method of completing the square to transform any quadratic equation in x into an equation of the form (x – p)2 = q that has the same solutions. Derive the quadratic formula from this form. b. 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. Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales. For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship. Key features include: intercepts; intervals where the function is increasing, decreasing, positive, or negative; relative maximums and minimums; symmetries; end behavior; and periodicity. Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes. For example, if the function h(n) gives the number of person-hours it takes to assemble n engines in a factory, then the positive integers would be an appropriate domain for the function 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. 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. Write a function that describes a relationship between two quantities.★ a) Determine an explicit expression, a recursive process, or steps for calculation from a context. Represent data on two quantitative variables on a scatter plot, and describe how the variables are related. a. Fit a function to the data; use functions fitted to data to solve problems in the context of the data. Use given functions or choose a function suggested by the context. Emphasize linear and exponential models. b. Informally assess the fit of a function by plotting and analyzing residuals. c. Fit a linear function for a scatter plot that suggests a linear association. A.CED.2 F.IF.4 F.IF.5 F.IF.7 F.IF.8 F.BF.1 S.ID.6 Orange Public Schools CCSS Curriculum CONTENT AREA: Mathematics Course: Algebra I UNIT #: 5 UNIT NAME: Quadratic Functions & equations