2. Chapter 7 – Algebra CP

3. RULES 1. Decide which team goes first. 2. Appoint a scorekeeper. 3. Teams answer correctly and earn money. If a team is correct, they can continue until max. 3 times or until they get BAAM! 4. If a team hits BAAM! they go bankrupt! 5. The team with the most money at the end is the winner.

4. 1 6 7 89 10 1112 131415 1617181920 21 22 232425 23 45

5. What is the axis of symmetry and vertex? y=-2x 2 -3x+10 x=-3/4 (-3/4, 89/8)

6. Say ‘goodbye’ to you r money!

7. irrational Irrational or rational?

8. You are broke!

9. 2, -2 Solve the equation. 6 (x 2 - 2) = 12

10. Solve the equation. 9 (w 2 + 1) = 9 W = 9

11. Where’s your mo ney gone?

12. Unlucky!

13. What is the axis of symmetry? y = x 2 + 6x - 2 x = - 3

14. Oh dear!

15. False, there are 2 solutions. True or false? If it is false, write a true statement. X 2 – 10 = 3, there is 1 solution.

16. Graph using a table. y = -x 2 + 1 Opens down, vertex at (0,1)

17. Graph using a table y = x 2 - 4 Opens up, vertex at (0, -4)

18. Oops!

19. 2.3 in The area of a circle is given by the formula A=πr 2. Find the radius of a circle with area 16 in 2 to the nearest inch.

20. Use the quadratic formula to solve 2x 2 – 7x = -3 3, 0.5

21. Rational or irrational? rational

22. Discriminant must be negative. Write a quadratic equation that has no solution.

23. x = -2, -3 Solve the equation x 2 = -5x - 6

24. Graph y < x 2

25. x = 3/2 (3/2, -5/2) Find the axis of symmetry and vertex. y = 2x 2 – 6x

26. Simplify +13

27. -8 and -7 Which two integers is between?

28. You lost everything!

29. x = 12, -12 Solve x 2 – 63 = 81

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