1. Warm Up
1) Rewrite

2. HW Check 6.9 13. (b – 4)(b – 2) 14. (n + 4)(n + 2)
(n+9)(n-6) (n+2)(n+2)
2(k+6)(k+5) (a-10)(a + 9)
2(p+2)(p-1) (v + 1)(v – 2)
(x – 10)(x – 5) 24. (v – 5)(v – 2)
25. (p +6)(p-3) (v + 1)(v + 10)

3. QUIZ – 30 minutes!

4. Graphic organizer on page 1 of your packet
Graphing
Graphic organizer on page 1 of your packet

5. Quadratic function
A QUADRATIC FUNCTION is a function that can be written in the standard form: f(x) = ax2 + bx + c where a≠ 0

6. Graphing quadratic
The graph of a quadratic function is U-shaped and it is called a PARABOLA.

7. Parts of a parabola
VERTEX: the highest or lowest point on the graph. Max if open down Min if open up

8. Parts of a parabola
AXIS OF SYMMETRY: vertical line (x = a) that divides the parabola into two symmetrical parts.

11. Ex #1: Vertex: ____ Axis of symmetry: _____ X-intercept:_____
Y-intercept:_____

12. # #3
Identify the vertex, axis of symmetry, x intercept and y intercept.

13. #4
Identify the vertex, axis of symmetry, x intercept and y intercept.

14. Complete the investigation:
Pairs will display their work under the doc cam. Make sure your work is neat!!!

15. Homework 6.10 tonight

16. Graphing in a Calcuator

17. Calculator Commands
Graph: Y=  Graph Vertex: 2nd Trace  Min or Max (left bound, right bound, enter) X-Intercepts: 2nd Trace  Zero (find each one separately) Y-Intercept: 2nd Graph  find where x is zero

18. Use a graphing calculator to answer the following questions
Use a graphing calculator to answer the following questions. All equations must be in y= before we can graph them using the calculator.
Ex. 1
Standard Form:__________
Graph:
Vertex: ____
Axis of symmetry: _____
X-intercept:_____
Y-intercept:_____

19. Ex 2: Standard Form:______________ Graph: Vertex: ____
Axis of symmetry: _____
X-intercept:_____
Y-intercept:_____

20. Ex 3: Standard Form:______________ Graph: Vertex: ____
Axis of symmetry: _____
X-intercept:_____
Y-intercept:_____