Multiple Choice
Find the standard form of the equation of the parabola with the given characteristic and vertex at the origin. directrix: x = -9
A) x2 = -9y
B) y2 = 36x
C) x2 = -36y
D) x2 = 36y
E) y2 = -9x
Correct Answer:

Verified
Correct Answer:
Verified
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