1. Notes 3.3 Quadratic Functions
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?
Notes 3.3 Quadratic Functions
Warm-up
Give an example of a quadratic function the opens downward.

2. Quadratic Function Graphs
Parabolas
Open upward (+a) or downward (-a)
Vertex is an absolute minimum or maximum
Has exactly 1 y-intercept
Has 0, 1, or 2 x-intercepts (quadratic formula)
Is symmetric about a line through the vertex called the axis of symmetry.

3. Three Forms of Quadratic Functions
Transformation form:
Polynomial form:
X-Intercept form:
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

4. Transformation Form Transformation form: Vertex: X-intercepts:
Y-intercepts:
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

5. Polynomial Form Transformation form: Vertex: X-intercepts:
Y-intercepts:
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

6. X-Intercept Form Transformation form: Vertex: X-intercepts:
Y-intercepts:
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

7. Examples: Find the vertex & intercepts. Graph.
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

9. Examples: Find the vertex & intercepts. Graph.
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

10. Examples: Find the vertex & intercepts. Graph.
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?

11. Homework: Pages 170-171 #2-20 even
Practice: Page #1,5,9
Homework:
Pages #2-20 even
LEQ: What are the parts of a Quadratic Function needed to create an accurate graph?