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Question 148753: Identify the center and radius of x2 + (y - 1)2 = 36
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! The standard equation for a circle is:
(x - h)^2 + (y - k)^2 = r2
where h and k are the x- and y-coordinates of the center of the circle and r is the radius.
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Now, let's look at your problem.
x^2 + (y - 1)^2 = 36
we can rewrite it as:
(x-0)^2 + (y - 1)^2 = 6^2
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Based on the above, we now have:
h=0
k=1
r=6
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center = (h,k) = (0,1)
radius = r = 6
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