directrix: x =
-
directrix:=
x=-(y-1)²+2
x=(y+1)² - 2
vertex(-2,-1)
a =
a =
Submit
12
vertex:(2, 1)
p = -
P
![directrix x directrixxy12xy1 2vertex21a a Submit12vertex2 1p P class=](https://us-static.z-dn.net/files/df5/0dffeafaf496356add497b0d5cc5eecd.png)