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# Alg II 2-7 Transformations

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### Alg II 2-7 Transformations

1. 1. Algebra II Chapter 2 Functions, Equations, and Graphs© Tentinger
2. 2. Essential Understanding: Just as the absolute value of x is its distance from zero, the absolute value of f(x) or |f(x)|, gives the distance from the line y = 0 for each value of f(x).Objectives:Students will be able to graph absolute value functions
3. 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. b. Graph square root, cube root, and piecewise- defined functions, including step functions and absolute value functions. F-BF.3. Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology. Include recognizing even and odd functions from their graphs and algebraic expressions for them.
4. 4. Absolute value function: f(x) = |x|Axis of symmetry: vertical line where the graph is symmetricVertex: either a single max or min point
5. 5. Use sketchpadGeneral Equation: y = a|x - h| + kDescribe the transformation(s) of the equation and identify the axis of symmetry and vertex.y = -2|x - 1| - 3y = 1/3|x + 4| + 1y = -|x + 2|
6. 6. Identify the vertexIdentify a (what does a represent?)Write the equation in standard form
7. 7. 2-7Pg. 111#9 – 30 (3s), 31, 35, 50, 5412 problems