Find the vertex, focus, and directrix of the parabola.y2 = 12x

A. Vertex: V(0, 0); focus: F(3, 0); directrix: x = 3
B. Vertex: V(0, 0); focus: F(3, 0); directrix: x = -3
C. Vertex: V(0, 0); focus: F(0, 3); directrix: y = -3
D. Vertex: V(0, 0); focus: F(3, 3); directrix: x = 3


Answer: B

Mathematics

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?
?

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?


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