SOLUTION: Find the center-radius form of the equation of a circle with the center (4,-1) and tangent to the y-axis.

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Question 216300: Find the center-radius form of the equation of a circle with the center (4,-1) and tangent to the y-axis.
Answer by Alan3354(69443) About Me  (Show Source):
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Find the center-radius form of the equation of a circle with the center (4,-1) and tangent to the y-axis.
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The distance from (4,-1) to the y-axis is 4, so that's the radius.
(x-4)^2 + (y+1)^2 = 16