Find an equation for the circle.Center at (2, -4), radius of length 
A. (x - 2)2 + (y - 4)2 = 
B. (x - 2)2 + (y + 4)2 = 
C. (x + 2)2 - (y + 4)2 = 4
D. (x + 2)2 + (y - 4)2 = 4
Answer: B
Mathematics
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