You can put this solution on YOUR website! The major axis is the longer and the square of a, its length, goes under the appropriate variable. Here, the major axis is along the y-axis from -3 to +3.
a=3 and a^2=9. This will be a vertical ellipse on its long axis and centered at the origin.
The minor axis is along the x-axis from -2 to 2, so b is 2 and b^2=4
x^2/4+y^2/9=1
or 9x^2+4y^2=36
