Multiple Choice
What are the focus and directrix of the parabola x2 - 4x = 4y?
A) focus (2, 0) , directrix y = -2
B) focus (2, -1) , directrix y = 1
C) focus (0, 0) , directrix y = -1
D) focus (2, 3) , directrix y = -5
E) focus (2, 1) , directrix y = -1
Correct Answer:

Verified
Correct Answer:
Verified
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