Find the vertex, focus, directrix, and focal width of the parabola.x2 = 28y
A. Vertex: (0, 0); Focus: (7, 0); Directrix: x = 7; Focal width: 7
B. Vertex: (0, 0); Focus: (7, 0); Directrix: y = 7; Focal width: 112
C. Vertex: (0, 0); Focus: (0, -7); Directrix: x = -7; Focal width: 112
D. Vertex: (0, 0); Focus: (0, 7); Directrix: y = -7; Focal width: 28
Answer: D
Mathematics
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