Find the center-radius form for the circle having the given endpoints of a diameter.(-3, -7) and (1, 1)
A. (x + 1)2 + (y + 3)2 = -6
B. (x + 1)2 + (y + 3)2 = 20
C. (x - 1)2 + (y - 3)2 = 20
D. (x - 1)2 + (y - 3)2 = -6
Answer: B
Mathematics
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