$\"\"$

The vertex of parabola is $\"\"$ .

The focus of parabola is $\"\"$ .

Since $\"\"$ -coordinate of focus is zero, the axis of parabola is vertical.

The standard form of vertical parabola with center at origin is $\"\"$ ,

where focus $\"\"$ .

In this case $\"\"$

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

$\"\"$

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

The parabola equation is $\"\"$ .