Classify the following conic section from its standard equation: 9x? +4xy + 5y2

asked Jul 14, 2023 209k views

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Classify the following conic section from its standard equation: 9x? +4xy + 5y2 – 40 = 0

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4^2 - 4(9)(5) = 16 - 180

= -164

It's an ellipse

Following the rules, as the result is less than 0, then it is an ellipse.

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