What is an equation of a parabola with a vertex at the origin and directrix x = 4.75?

Question

(1 point)
Responses

y = –one over nineteenx2
y = – Image with alt text: one over nineteen x 2

y = one over nineteenx2
y = Image with alt text: one over nineteen x 2

x = –one over nineteeny2
x = – Image with alt text: one over nineteen y 2

x = one over nineteeny2

Answer 1

y = 1/19x^2