SOLUTION: Find the standard form of an equation of the circle having (-1,1) as the center and tangent of x-axis.

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Question 817513: Find the standard form of an equation of the circle having (-1,1) as the center and tangent of x-axis.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Find the radius. How far is the x axis from the center point of (-1,1)?
Knowing the center point and the radius, you can fill-in the parts of the standard form equation for the circle.

%28x-h%29%5E2%2B%28y-k%29%5E2=r%5E2
The problem description gives h=-1 and k=1.

That should be enough. If not seem to be, say.