Answer
See figure: vertex $(4,-1)$, focus $(4,0)$, and directrix $y=-2$
Work Step by Step
Step 1. From the given equation, we can find $p=\frac{4}{4}=1$ with the parabola opening upwards as shown in the figure.
Step 2. We can identify the vertex at $(4,-1)$, focus at $(4,0)$, and directrix as $y=-2$
