1. Good morning! Today is Wednesday, April 11(2), 2015
Do Now: SSR
Read silently for 10 minutes, write about what you read for 5 minutes
Remember, I do deduct points from your SSR grade for non-silence 

2. f x =a x 2 +bx+c where a ≠0
parabola
The sign of the leading coefficient. If a is positive, it opens upward. If a is negative, it opens downward.

3. Vertex

4. Axis of Symmetry The Axis of Symmetry is a line.
How do we write a line? With an ___________

5. Axis of Symmetry The Axis of Symmetry is a line.
How do we write a line? With an equation.
On your paper, sketch the graph of the line x = 2.
Is it vertical or horizontal?
Now sketch the graph of the line x = -3.

6. Example (IAN p. 19): c b a axis symmetry x= −b 2a x = −8 2 −2 x= −8 −4
axis of symmetry

7. Example (IAN p. 19): axis symmetry f 2 =−2 2 2 +8 2 −3
Vertex = (2, 5)
f 2 =− −3
f 2 =−2(4) + 16 − 3
f 2 =− − 3
Now you try: Find the Vertex and Axis of Symmetry for Example #2. Use p. 20 of your IAN.
f 2 = 5
axis of symmetry
x = 2