Question 1010588
Knowing the focus and vertex, you can determine the directrix, and the same lessons as given previously can still be used:


<a href="https://www.youtube.com/watch?v=M8LGsQMwwj4">Deriving equation for parabola - vertex at Origin</a>


<a href="https://www.youtube.com/watch?v=Wworlx39KfQ">Same thing but vertex not at Origin</a>