$\"\"$

Observe the figure :

The ellipse is centered at $\"\"$ and its major axis is parallel to the $\"\"$ -axis.

The general equation form of the ellipse is $\"\"$ , where $\"\"$ .

Here $\"\"$ and $\"\"$ .

Substiute $\"\"$ and $\"\"$ and $\"\"$ in general form of the equation.

$\"\"$

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

$\"\"$

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