choose-the-correct-option-for-the-vertex-directrix-focus-and-graph-of-the-parabo-1

Question

Choose the correct option for the vertex, directrix, focus, and graph of the parabola.
(x +9)² = - 16(y + 3)

Accepted Answer

Vertex: (-9, -3); Directrix: y = 1; Focus: (-9, -7)

Graph of a parabola with vertex (-9, -3), focus (-9, -7), and directrix y = 1.

Answer

Vertex: (3, 9); Directrix: x = -1; Focus: (7, 9)

Graph of a parabola with vertex (3, 9), focus (7, 9), and directrix x = -1.

Answer

Vertex: (3, 9); Directrix: x = 7; Focus: (-1, 9)

Graph of a parabola with vertex (3, 9), focus (-1, 9), and directrix x = 7.

Answer

None of these

Choose the correct option for the vertex, directrix, focus, and graph of the parabola.(x +9)2 = - 16(y + 3)