1. Graphing Quadratics -Using the Graphing Calculator By: Bradley Hinken & Shaddi Alnouri

2. Table of Constance Slide 1: Title Slide 2: T of C Slide 3: Explanation Slide 4: Steps To Help U Solve Slide 5: Practice Slide 6: Fun Links Slide 7: Thank You

3. Quadratic Equations Standard Form: y=ax 2 +bx+c When a quadratic equation is graphed, it is called a parabola. A parabola basically looks like a U or an upside down U. Or as Mrs. K says a “smiley” or a “frown”.

4. Steps To Help U Solve Click the Y= Button Click GRAPH To find the Vertex o Click 2nd then TRACE. o Than scroll down to minimum or maximum (according to the graph) o Put the curser on the vertex o Then press the left button twice than hit enter o Line back up with the vertex o Press the right button twice and hit enter o Now hit enter again o Look at the x, y values it gave u o The x value is the Axis of Symmetry o And together they are your vertex Note: Always clear the memory 1st (2nd, +, 7, 1,2) Note: When Graphing Press the ZOOM Button Then the # 6 to see the Graph in a Standard Window Note: If u cannot see the vertex on the graph go to window and change it accordingly Note: Mrs. K calls 2nd the “Blue Button” Note: TRACE is under the screen Note: You hit enter the 2nd time only if u don’t want a guess

5. Things To Remember 1.ALWAYS CLEAR THE MEMORY 1ST 2.On the Graphing Calcs the minus sign is different then the subtract. (It will mess up the graph) 3.Solutions are called ZEROS on the Graphing Calc 4. The “BLUE BUTTON” is the 2nd Button 5.

6. Practice 1.3x 2 +3x+2 ANSWER 2. 5x 2 -3 ANSWER 3. 5x 2 -2x+55 ANSWER 4. 5x 2 -20x+2 ANSWER 5. 5x 2 -20x+2 ANSWER 6. 10X 2 -2X-4 ANSWER 7. X 2 -X+2 ANSWER 8. X 2 -4X-20 ANSWER 9. 5X 2 -8X+2 ANSWER 10. 10X 2 -12X+12 ANSWER

7. Fun Links 1. http://www.purplemath.com/modules/quadform.htm 2. http://www.quia.com/cb/24731.html 3. http://jwilson.coe.uga.edu/emt668/EMAT6680.Folders/Barr on/unit/Lesson%206/6.html

8. Thank you for Visiting this PowerPoint. You have contributed to your education. WE were happy to help. Publisher: Hinken Enterprises Designer: SA Arts Authors: Bradley Hinken & Shaddi Alnouri TradeMark: Hinken Enterprises

9. Answers 1-2 1.Vertex: (-0.5, 1.25) A of S: -0.5 BACK TO PROBLEMS 2. Vertex: (0,3) A of S: 0 BACK TO PROBLEMS

10. Answers 3-4 3. Vertex: (0, 55) A of S: 0 BACK TO PROBLEMS 4. Vertex: (0.2, -20) A of S: 0.2 BACK TO PROBLEMS

11. Answers 5-6 5. Vertex: (2, -18) A of S: 2 BACK TO PROBLEMS 6. Vertex: (0, -4.1) A of S: 0 BACK TO PROBLEMS

12. Answers 7-8 7. Vertex : (0.5, 1.75) A of S: 0.5 BACK TO PROBLEMS 8. Vertex: (2, -24) A of S: 2 BACK TO PROBLEMS

13. Answers 9-10 9. Vertex: ( 0.8, -1.2) A of S: 0.8 BACK TO PROBLEMS 10. Vertex: (0.5, 9) A of S: 0.5 BACK TO PROBLEMS

14. STOP!!!