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4.1 Graph QuadraticsVertex Form.notebook WARM UP September 29, 2016 Opens Axis of Vertex Symmetry 2 1. y = 4(x - 7) + 2 2 2. y = -3(x - 2) - 7 2 3. y = (x + 5) 2 4. y = -x + 4 ID Characteristics 1. y = - (x - 3)2 2 2. y = (x - 1) - 4 3. y = -2(x - 7)2 4. y = 3x2 - 5 Practice Answers 1 4.1 Graph QuadraticsVertex Form.notebook September 29, 2016 5. y = 2(x - 2)2 + 5 Practice Answers Graph Vertex Form Ex. 4 2 y = 1/2 (x + 2) - 3 x y Vertex: Axis of symmetry: Compare to parent: Domain: Range: Graph Vertex 2 4.1 Graph QuadraticsVertex Form.notebook September 29, 2016 Graph Vertex Form Ex. 5 2 f(x) = 1/3(x + 1) - 8 x y Vertex: Axis of symmetry: Compare to parent: Domain: Range: Graph Vertex Graph Vertex Form Ex. 1 2 f(x) = -x + 2 x y Graph Vertex 3 4.1 Graph QuadraticsVertex Form.notebook September 29, 2016 Graph Vertex Form Ex. 2 2 f(x) = -2(x + 1) + 6 x y Graph Vertex Steps to graph quadratic function: 1. 2. 3. 4. 5. 6. 7. 8. Identify direction opens. Identify and plot vertex. Set up x-y table; enter vertex. Find next 2 x values by adding denominator of "a" to previous x value, twice. Plug each new x value into the function and find the corresponding y value. Plot the 2 new points. Reflect both points across the axis of symmetry. Connect with smooth curve. Steps to Graph 4