Question 1067744
Vertex (0,0)
Focus (2,0)
-
DIRECTRIX (-2,y), or the line x=-2, two units away from vertex on the other side


You can use Definition of a Parabola and setup  {{{sqrt((x-2)^2+(y-0)^2)=sqrt((x-(-2))^2+(y-y)^2)}}}
Simplify this and put into whatever form you want.


<a href="https://www.youtube.com/watch?v=M8LGsQMwwj4">Derive equation for a parabola, given Directrix and Focus - video</a>