Consider the Equation $10 x ^ { 2 } - 5 x y + 10 y ^ { 2 } - 81 = 0$

Multiple Choice

Consider the equation. $10 x ^ { 2 } - 5 x y + 10 y ^ { 2 } - 81 = 0$
Explain how to identify the graph of the equation.

A) Find the discriminant of the equation to identify the graph of the equation.
B) Find the foci of the equation to identify the graph of the equation.
C) Find the major axis of the equation to identify the graph of the equation.
D) Find the minor axis of the equation to identify the graph of the equation.
E) Find the vertices of the equation to identify the graph of the equation.