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Warm Up 1) Rewrite.

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Presentation on theme: "Warm Up 1) Rewrite."— Presentation transcript:

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.

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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:_____


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