Identify the Vertices and the Foci $$- 10 x ^ { 2 } + 8 y ^ { 2 } = - 80$$

question 12

Multiple Choice

Identify the vertices and the foci.
- $$- 10 x ^ { 2 } + 8 y ^ { 2 } = - 80$$

• A) vertices: \(( \sqrt { 10 } , 0 ) , ( - \sqrt { 10 } , 0 )\)
• foci: \(( 3 \sqrt { 2 } , 0 ) , ( - 3 \sqrt { 2 } , 0 )\)
• B) vertices: \(( 0 , \sqrt { 10 } ) , ( 0 , - \sqrt { 10 } )\)
• foci: \(( 0,3 \sqrt { 2 } ) , ( 0 , - 3 \sqrt { 2 } )\)
• C) vertices: \(( \sqrt { 8 } , 0 ) , ( - \sqrt { 8 } , 0 )\)
• foci: \(( \sqrt { 2 } , 0 ) , ( - \sqrt { 2 } , 0 )\)
• D) vertices: \(( \sqrt { 8 } , 0 ) , ( - \sqrt { 8 } , 0 )\)
• foci: \(( 3 \sqrt { 2 } , 0 ) , ( - 3 \sqrt { 2 } , 0 )\)

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