1. WARM UP Use f(x) = 3x 2 + 4x – 6 to evaluate the following. 1. f(2) 2. f(-4) 3. f(0)

2. Math II UNIT QUESTION: What is a quadratic function? Standard: MM2A3, MM2A4 Today’s Question: How do you graph quadratic functions in standard form? Standard: MM2A4.a.

6. x-(x) 2 +2x-1 y(x, y) 

7. Tell whether the graph opens up or down. Graph each using a T-chart. Find the axis of symmetry &  vertex . Use a dotted line to graph the axis of symmetry. xx 2 - 6x + 5 y(x, y) 

8. x-(x) 2 - 2x+3 y(x, y) 

9. x(x) 2 +2x-6 y(x, y) 

10. x(x) 2 +8x+13 y(x, y) 

11. 1.Find the vertex point, (h, k): 2.a will be the a from the standard form equation. 3. Substitute into y = a (x-h) 2 + k

12. 1.Convert y = 2x 2 – 4x + 5 2.Convert y = -x 2 – 2x + 1 Vertex = (1, 3) Standard form: y = 2(x-1) 2 + 3 Vertex = (-1, 2) Standard form: y = -(x+1) 2 + 2

13. Homework Pg. 59 #23-33 odd