> Thank you Narasimham, but I think I made a mistake. > It's not a parabola because it's not symmetrical, it > goes upwards at a lower rate than it comes downwards. > Do you think the curve can still be defined?
I assumed that you made no mistake and that you were indeed referring to a parabola whose axis is not parallel but inclined to coordinate axes. That what your graph appears to me.
There is an XY term and I have given its solution. 4 points are necessary to define a parabola, 5 for a conic.