Question

Which of the following is the graph of:(x-3)^2+(y+1)^2=9?​

Answer 1

Answer: Choice A

center = (3, -1)

radius = 3

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Explanation:

Rewrite the y+1 as y-(-1). Rewrite the 9 as 3^2

Then compare to the general form (x-h)^2+(y-k)^2 = r^2

You should find that h = 3, k = -1 and r = 3.

The center is (h, k) = (3,-1) and the radius is r = 3.

Choice A matches with that description.