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Circle P has a radius of 8 units with center P at (2, -1). Which equation defines circle P? (x + 2)2 + (y – 1)2 = 64 (x – 2)2 + (y + 1)2 = 64 (x – 2)2 + (y + 1)2 = 8 (x + 2)2 + (y – 1)2 = 8
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the general form of the circle is \[(x -h)^2 + (y - k)^2 = r^2\] (h, k) is the centre and r is the radius... your question has centre (2, -1) and r = 8 substitute to get your answer
Oh, so a??
wait...
B
@campbell_st
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B is correct
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