Which equation represents a circle with a center at -4.9 and a diameter of 10 units?x – 92 + y + 42 = 25x + 42 + y - 92 = 25x - 92 + y + 42 = 100x + 42 + y - 92 = 100

Answer:(x+4)^2 + (y-9)^2 = 25We can write the equation of a circle as(x-h)^2 + (y-k)^2 = r^2where (h,k) is the center and r is the radiusWe know the diameter is 10 so the radius is 1/2 *10 = 5(x- -4)^2 + (y-9)^2 = 5^2(x+4)^2 + (y-9)^2 = 25