1. Introduction to Quadratic Functions Objective: Define, identify, and graph quadratic functions. Multiply binomials to produce a quadratic expression.

8. Quadratic Functions A quadratic function is any function that can be written in the form where. It is defined by a quadratic expression, which is an expression of the form, where.

9. Example 1

11. You Try Let. Show that g represents a quadratic function. Identify a, b, and c when the function is written in the form.

12. You Try Let. Show that g represents a quadratic function. Identify a, b, and c when the function is written in the form. F O I L

15. Example 2

18. Try This Identify whether has a minimum value or maximum value at the vertex. Then, give the coordinates of the vertex.

19. Try This Identify whether has a minimum value or maximum value at the vertex. Then, give the coordinates of the vertex. Maximum.

20. Try This Identify whether has a minimum value or maximum value at the vertex. Then, give the coordinates of the vertex. Maximum.

21. Try This Identify whether has a minimum value or maximum value at the vertex. Then, give the coordinates of the vertex.

22. Try This Identify whether has a minimum value or maximum value at the vertex. Then, give the coordinates of the vertex. Minimum.

23. Try This Identify whether has a minimum value or maximum value at the vertex. Then, give the coordinates of the vertex. Minimum.

25. Example 3

29. Homework Page 278 13-45 odd