1. Quadratics
7. Quadratic Graphs

2. Vertex of the graph

3. Example 1 (Ex 1K1)

5. Example 2 (Ex 1K1)

7. Example 3 (Ex 1K1)

9. Example 4 (Ex 1K1)

11. Problems
Page 56 Ex 1K1
Question 4

12. The Discriminant and Quadratic Graphs
Positive Definite
All y values >0

13. The Discriminant and Quadratic Graphs
Negative Definite
All y values <0

14. Example 5 (Ex 1K2)

16. Example 6 (Ex 1K2)

18. Problems
Page 57 Exercise 1K2
Question 1 & 2

19. Equations from their Graphsα β
(h,k))

20. Example 7 (Ex 1L)
Find the equation of the following quadratic graphs:
X=-3
(b)
(c)
(d)
(a) 2 5 -1 -3 5 1 -2 1 2
(3,-2)
.(3,4)
(e)
(f)
(g)
(3,4)
(h) 3
(2,-1) 3 -2 4 -1 5

23. Problems
Page 59 Exercise 1L
Questions 1, 2, 3, 4, 5.

24. Quadratic Optimisation

25. Example 8 (Ex 1M)

27. Example 9(Ex 1M) x
Padock
River

29. Problems
Page 62 Exercise 1M
Questions 1(a),(c),(e), 2, 3, 4, 5, 6.