You can put this solution on YOUR website! y^2-x^2/15=1
This equation is that of a hyperbola with vertical transverse axis.
Its standard form: (y-k)^2a^2-(x-h)^2/b^2=1≤ (h,k)=(x,y) coordinates of vertex
For given equation:
vertex:(0,0)
see graph below:
y=±(1+x^2/15)^.5