1. Identifying Quadratic Graphs

2. positive quadratic y = x2 negative quadratic y = –x2
                                                

3. What does this quadratic graph look like?
y = x2

4. What does this quadratic graph look like?
y = - x2 ?

5. What does this quadratic graph look like?
y = x2 + 1 ?
What does adding one do to the graph?

6. What does this quadratic graph look like?
y = x2 + 2x + 1 ? x -3 -2 -1 1 2 3 y
Fill in the chart on your own please

7. What does this quadratic graph look like?
y = x2 – 3 ?
What does subtracting 3, do to the parabola?

8. What does this quadratic graph look like?
y = x2 + 5x + 6 ?
Please fill in the chart on your own. x -3 -2 -1 1 2 y

9. Which of these are a happy face shape and which are a sad face shaped?
y = x2 + 3x + 6
y = x2 + 3x - 6
y = x2
y = - x2 + 3x - 6
- 3x - 6
y = - x2 +3x + 6
y = - x2 - 3x + 6
y = x2 - 3x + 6
y = - x2 - 3x - 6