Answer:
the value of p=-1
Step-by-step explanation:
General equation of a parabola is
[tex]y^2= 4p(x)[/tex] where vertex is at (0,0)
now we compare the given equation with general form
[tex]y^2=-4x[/tex]
We have -4 in the place of 4p
[tex]4p=-4[/tex]
Divide both sides by 4
so p = -1
the value of p = -1
