Step 1:
\The vertex is
and focus is
.
The equation of parabola with vertex
, focus
and directrix
is
.
Here
and directrix is
.
Required equation of parabola is
.
.
Points of latus rectum can be found by letting
in
.
Find the two points of latus rectum by putting
in
.

.
Points of latus rectum are
.
Step 2:
\Graph:
\\
\