1. Fold the paper in half perpendicular to the dotted line.
Fold the paper on the line marked bi and −bi. This is a “mountain” fold, so the printing is on the outside.
![Fold the paper in half perpendicular to the dotted line.](https://media.screensteps.com/image_assets/assets/005/676/708/original/7cf477b6-dfdf-407a-b0a9-84ac071d52f1.png)
2. Cut along the dotted line.
Note: When cutting you get both sides of the dotted line because it is folded!!
![Cut along the dotted line.](https://media.screensteps.com/image_assets/assets/005/676/710/original/4951f08d-9573-4607-b28a-c2f9501c5fae.png)
3. Crease 2 valley folds.
![Crease 2 valley folds.](https://media.screensteps.com/image_assets/assets/005/676/712/original/a49a8aa7-349b-4a4c-8a59-1c99e05375e0.png)
4. Fold backward along the center line:
- Hold the flaps perpendicular to the center line and push down.
- This opens the cut along the dotted line.
- Fold along the Center Line.
![Fold backward along the center line:](https://media.screensteps.com/image_assets/assets/005/676/714/original/3c6d2bd5-e114-43e9-b36c-241a889b7fcf.png)
5. The Emerging Model:
- Position the model so that the equation is on the right side.
- Close any gaps with tape.
- The model will not "stand" well because the bottom is uneven.
![The Emerging Model:](https://media.screensteps.com/image_assets/assets/005/676/715/original/ecbb2328-d312-4e76-b70b-d8369498bebd.png)
6. Cut the uneven edge off!
![Cut the uneven edge off!](https://media.screensteps.com/image_assets/assets/005/676/717/original/a39807b7-02c2-4a4e-8d5b-1d4f4702f602.png)
7. View Parabola.
- The imaginary plane is almost invisible coming directly at you.
- The parabola is visible!
![View Parabola.](https://media.screensteps.com/image_assets/assets/005/676/719/original/cdba489b-d6d5-456b-9ccd-d58d3e3baed3.png)
8. Turn the model to view the complex roots
![Turn the model to view the complex roots](https://media.screensteps.com/image_assets/assets/005/676/721/original/b3586f0a-3ed3-4aa5-ab1f-cb58f7c3f8a8.png)