Find the focus and directrix of the parabola.y2 - 16x = 0
A. (0, 4); y = -4
B. (4, 0); x = -4
C. (4, 0); x = 4
D. (4, 0); y = -4
Answer: B
Mathematics
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A. > B. <
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A. 0 B. Never undefined C. -7 D. 7
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Simplify the expression by combining like terms if possible.3x - 4y + 3x - 8y + 1
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Perform the indicated operations.(-6x2y - xy) + (9x2y + 3xy)
A. 3x2y + 4xy B. 3x2y + 2xy C. 15x2y + 2xy D. 15x2y + 4xy
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