Using focus-directrix graph paper, create a parabola that has a horizontal directrix that is four units above the focus. You can get focus-directrix paper on the Lesson 12.1.4 Resource Page available at cpm.org. 12-96 HW eTool (Desmos).
Use this eTool to create a Parabola
Click the link at right for the full version of the eTool: CCG 12-96 HW eTool