Using the graph of the parabola, determine the coordinates of the vertex and focus, and the equation of the directrix.
A. Vertex (1, 3), focus (3, 3), directrix y = -1
B. Vertex (3, 3), focus (1, 3), directrix x = -1
C. Vertex (1, 3), focus (-1, 3), directrix x = 3
D. Vertex (1, 3), focus (3, 3), directrix x = -1
Answer: D
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A. -2?
cos y dy
B. ?
sin y dy
C. ?
cos y dy
D. -2?
sin y dy
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Multiply.12 ? 0 ? 9
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