1 Answer

Bentobox · Answer 1 · 2020-01-08T21:28:56+0000

Answer:

(x+4)^2 + (y-9)^2 = 25

Explanation:

To write the equation of a circle, use the formula
(x-h)^2+(y-k)^2 = r^2 where the center of the circle is (h, k).

This means the equation is
$(x--4)^2 + (y-9)^2 = r^2\\\(x+4)^2 + (y-9)^2 = r^2$ .

Find the radius r by dividing the diameter of 10 in 2. The radius is 5.

So the equation of the circle is
(x+4)^2 + (y-9)^2 = 25

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