Find the Center and the Vertices of the Ellipse $81 x ^ { 2 } + y ^ { 2 } = 81$

question 5

Multiple Choice

Find the center and the vertices of the ellipse.​ $81 x ^ { 2 } + y ^ { 2 } = 81$ ​

• A)center: (-9,9);vertices: (-1,-9), (1,9)
• B)center: (0,0);vertices: (0,-9), (0,9)
• C)center: (0,0);vertices: (-9,-1), (9,1)
• D)center: (0,0);vertices: (-9,0), (9,0)
• E)center: (-9,9);vertices: (-1,0), (1,0)

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