1. Focus (1,0); directrix x=-3

2. Focus (0,-3); vertex (2,-3)

3. Vertex (5,1); directrix x=3

Please refresh my memory on this because I literally am drawing a blank :/
Thanks!

The general formula for a parabola with horizontal axis (all three of yours have horizontal axes) is



Vertex = (h, k)
Directrix : y = k-p
Focus : (h, k+p)

I think that's enough. Care to give it a try? Post your answers! :)