Answer
$y^2=-32x$
Work Step by Step
It is a parabola with horizontal axis. Focus: $F=(p,0)$
$F=(p,0)=(-8,0)$
$p=-8$
Equation: $y^2=4px$
$y^2=4(-8)x$
$y^2=-32x$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.