$\"\"$

The standard form of vertical parabola with vertex at origin is $\"\"$ .

Directrix is $\"\"$ .

Vertex $\"\"$ .

Directrix of the vertical parabola is $\"\"$ .

Substitute $\"\"$ and $\"\"$ in $\"\"$ .

$\"\"$

Substitute $\"\"$ in standard form of vertical parabola $\"\"$ .

$\"\"$

The equation of the parabola is $\"\"$ .

$\"\"$

The equation of the parabola is $\"\"$ .