Equation of circle whose centre (h, k) and radius r is
(x - h)2 + (y - k)2 = r2
According to the given graph the centre is the mid point of (-8, 4) and (-2, 4) is
(h, k) = [(-8-2)/2, (4+4)/2]
(h, k) = (-5, 4)
And diameter is distance between ((-8, 4) and (2, 4) is
a) So equation of circle whose centre is (-5 , 4) and radius 3 ...
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