1. Thursday, September 8

2. Wildcat Drills
Quizlet Live

3. 4.2 Standard Form of a Quadratic Function
Learning Target:
I can graph quadratic functions written in standard form.

4. Ex. 1 Standard Form: 𝑦= 𝑎𝑥 2 +𝑏𝑥+𝑐.
1. 𝑦= 𝑥 2 −2𝑥+4
To find the 𝑥−𝑐𝑜𝑜𝑟𝑑𝑖𝑛𝑎𝑡𝑒 of the vertex, you use 𝑎 𝑎𝑛𝑑 𝑏 from the standard form.
𝑥= 𝑏 2𝑎
To find the y-coordinate, you plug the x value into the original equations and solve for y.

5. Indentify the vertex of each parabola.
I do:
2. 𝑦= 𝑥 2 +2𝑥+3

6. We do:
3. 𝑦= −2𝑥 2 +2𝑥−5

7. You do:
3. 𝑦= −𝑥 2 +3𝑥−1

8. Ex. 2 Graph each function
I do:
1. 𝑦= 𝑥 2 −2𝑥+4

9. We do:
2. 𝑦= 𝑥 2 +2𝑥+3

10. You do:
3. 𝑦= 𝑥 2 +2𝑥+1

11. Assignment:
See Google Classroom