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# Sketching Parabolas

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1. Sketching Parabolas Algebra 1 Monday, June 2, 2014

2. Who came up with the Quadratic Formula? 900 B.C. First recorded symbol for Zero 1947 A.D Jackie Robinson 2400 B.C Papyrus in Egypt 1 B.C. 3000 B.C Sumerians divide day into 24 hrs 1800 B.C.Babylonians have multiplication table 44 B.C Caeser assassinated 1633 A.D Galileo condemned to death http://www.au.af.mil/au/awc/awcgate/timeline/time0002.htm

3. Who came up with the Quadratic Formula? 900 B.C. First recorded symbol for Zero 1947 A.D Jackie Robinson 2400 B.C Papyrus in Egypt 1 B.C. 3000 B.C Sumerians divide day into 24 hrs 1800 B.C.Babylonians have multiplication table 44 B.C Julius Caeser assassinated 1633 A.D Galileo condemned to death http://www.au.af.mil/au/awc/awcgate/timeline/time0002.htm

4. Discriminant- the value inside the radical ( ) when you do the quadratic formula. This value can be positive, zero, or negative. Roots of a Polynomial- the answer(s) for x. Where the graph of the parabola intersects the x-axis. There can be two roots, one root, or No roots.

5. Two Roots Positive

6. One Root Zero

7. No Roots Negative

8. Discriminant- the value inside the radical ( ) when you do the quadratic formula. This value can be positive, zero, or negative. Roots of a Polynomial- the answer(s) for x. Where the graph of the parabola intersects the x-axis. There can be two roots, one root, or No roots. • Parabola- the type of curve you get when you neatly graph a quadratic equation. • Positive, or upward, parabolas have a minimum point.

9. When the a in, ax2, is Positive Upward Happy Minimum

10. Discriminant- the value inside the radical ( ) when you do the quadratic formula. This value can be positive, zero, or negative. Roots of a Polynomial- the answer(s) for x. Where the graph of the parabola intersects the x-axis. There can be two roots, one root, or No roots. • Parabola- the type of curve you get when you neatly graph a quadratic equation. • Positive, or upward, parabolas have a minimum point. • Negative, or downward, parabolas have a maximum point.

11. When the a in, ax2, is Negative Maximum Downward Sad

12. Discriminant- the value inside the radical ( ) when you do the quadratic formula. This value can be positive, zero, or negative. Roots of a Polynomial- the answer(s) for x. Where the graph of the parabola intersects the x-axis. There can be two roots, one root, or No roots. • Parabola- the type of curve you get when you neatly graph a quadratic equation. • Positive, or upward, parabolas have a minimum point. • Negative, or downward, parabolas have a maximum point. • Parabolas are symmetrical along their vertical “line of symmetry” which is always halfway between points of equal height.

13. Symmetry - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -