SOLUTION: What is the equation for a circle with its center at the origin and a tangent whose equation is y=7?

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Question 199953: What is the equation for a circle with its center at the origin and a tangent whose equation is y=7?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the equation for a circle with its center at the origin and a tangent whose equation is y=7?
Since it's tangent at (0,7), its radius is 7
x%5E2+%2B+y%5E2+=+7%5E2