Find the standard form of the equation of the parabola with the given characteristic and vertex at the origin.
directrix: x=-5
?
A. y2 = 20x
B. y2 = -5x
C. x2 = -20y
D. x2 = -5y
E. x2 = 20y
Answer: A
Mathematics
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A.
B.
C.
D.
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What will be an ideal response?
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