## Precalculus (6th Edition) Blitzer

vertex $(0,1)$, focus $(-2,1)$, directrix $x=2$, see graph.
Step 1. Given $(y-1)^2=-8x$, we have $4p=-8$ and $p=-2$ with the parabola opening to the left and vertex $(0,1)$. Step 2. We can find the focus at $(-2,1)$ and directrix as $x=2$ Step 3. We can graph the parabola as shown in the figure.