Find the center (h, k) and radius r of the circle. Graph the circle.x2 + y2 + 4x + 4y + 4 = 0 
A. (h, k) = (-2, -2); r = 2
B. (h, k) = (2, 2); r = 2
C. (h, k) = (-2, 2); r = 2
D. (h, k) = (2, -2); r = 2
Answer: A
Mathematics
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Find the slope of the line passing through the pair of points. 
A) m = 7 B) m = 2 C) m = 1 D) m = -1 E) none of these
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Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
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