Use the Discriminant to Classify the Graph $5 x ^ { 2 } + 10 x y + 11 y ^ { 2 } + 9 x - 10 y - 72 = 0$

Multiple Choice

Use the discriminant to classify the graph. $5 x ^ { 2 } + 10 x y + 11 y ^ { 2 } + 9 x - 10 y - 72 = 0$

A) The graph is a hyperbola.
B) The graph is a ellipse or circle.
C) The graph is a parabola.
D) The graph is a line.
E) The graph is a cone.