Consider the given equation,
Divide the equation by 20 i.e. LCM of 5 and 4,
The equation does not resemble an ellipse or circle.
Either it is a point, or none of the above.
Let us check if the equation resembles a point.
Consider the equation as,
Simplify the expression further,
Now, observe that for every value of 'x' there exist some value of 'y'. It means that the equation corresponds to a point.
But note that there is a negative term in the square root i.e. imaginary term.
It means that this point must lie in a complex plane, not on the real plane.
Therefore, the answer to the given question is a point.nary