Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 - 4x + 4y - 1 = 0
A. a. center = (-2, -2); radius = 3
b. (2 + 
, 0), (0, -2 + 
)
B. a. center = (-2, 2); radius = 9
b. (2 + 
, 0), (0, -2 + 
)
C. a. center = (2, -2); radius = 3
b. (-2 + 
, 0), (-2 - 
, 0), (0, 2 + 
), (0, 2 - 
)
D. a. center = (2, -2); radius = 3
b. (2 + 
, 0), (2 - 
, 0), (0, -2 + 
), (0, -2 - 
)
Answer: D
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= ay + b with 
This differential equation has solution 
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A. Yes B. No
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