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

question 220

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.

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