what are the coordinates of the center and the measure of the radius for a circle whose equation is ( x - 8)^2 + (y + 4)^2 = 12

1 answer

huh? Recall that the circle with center at (h,k) and radius r is

(x-h)^2 + (y-k)^2 = r^2

just read it off from the equation.
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