2. EOCT Practice Question of the Day

3. CCGPS Geometry Day 24 (9-5-14) UNIT QUESTION: How are real life scenarios represented by quadratic functions? Today’s Question: How do we graph quadratics in standard form? Standard: MCC9-12.F.IF.8

4. Coefficients a, b, and c are coefficients Examples: Find a, b, and c

5. Open Up / Open Down

6. A > 0 Therefore, the parabola opens up Example #1

7. A < 0 Therefore, the parabola opens down Example #2

8. Examples: Determine if the Parabola Opens Up or Opens Down

9. Axis of Symmetry Vertex Point 1.Axis of symmetry is found using 2. To find the y coordinate of the vertex point, substitute x into the equation and solve for y.

10. Examples Find the vertex point

15. x-(x) 2 +2x-1 y(x, y) 

16. 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) 

17. x-(x) 2 - 2x+3 y(x, y) 

18. x(x) 2 +2x-6 y(x, y) 

19. x(x) 2 +8x+13 y(x, y) 

20. x(x) 2 +8x+13 y(x, y) 

21. Homework Practice Worksheet