Write a system of inequalities whose solution set is the region shown.
A. y ? 0
x2 + y2 ? 16
B. y ? 0
x2 + y2 ? 16
C. y ? 0
x2 + y2 ? 16
D. y ? 0
x2 + y2 ? 16
Answer: D
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A. heptagon B. pentagon C. quadrilateral D. hexagon
Find the center and radius of the circle.(x + 4)2 + (y - 4)2 = 4
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