Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 10
2. C) y equals negative 1 divided by 8 x squared
3. D) x equals negative 1 divided by 32 y squared
4. C) x2 = -5.3y
5. C) Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (0, -12), (0, 12)
6. None from the choices, it should be
Center: (0, 0); Vertices: the point negative two square root two comma zero and the point 2 square root two comma zero; Foci: Ordered pair negative square root 6 comma zero and ordered pair square root 6 comma zero
7. B) A vertical ellipse is shown on the coordinate plane centered at the origin with vertices at the point zero comma seven and zero comma negative seven. The minor axis has endpoints at negative six comma zero and six comma zero.
8. D) x squared divided by 16 plus y squared divided by 25 equals 1
9. D) Vertices: (1, -1), (-11, -1); Foci: (-15, -1), (5, -1)
Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 10
2. C) y equals negative 1 divided by 8 x squared
3. D) x equals negative 1 divided by 32 y squared
4. C) x2 = -5.3y
5. C) Center: (0, 0); Vertices: (0, -15), (0, 15); Foci: (0, -12), (0, 12)
6. None from the choices, it should be
Center: (0, 0); Vertices: the point negative two square root two comma zero and the point 2 square root two comma zero; Foci: Ordered pair negative square root 6 comma zero and ordered pair square root 6 comma zero
7. B) A vertical ellipse is shown on the coordinate plane centered at the origin with vertices at the point zero comma seven and zero comma negative seven. The minor axis has endpoints at negative six comma zero and six comma zero.
8. D) x squared divided by 16 plus y squared divided by 25 equals 1
9. D) Vertices: (1, -1), (-11, -1); Foci: (-15, -1), (5, -1)
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