SOLUTION: Find the equation of the circle whose centre is 3,-1 and touches the x-axis

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Question 1007772: Find the equation of the circle whose centre is 3,-1 and touches the x-axis
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If its center is (3, -1) and touches the x-axis, its radius must be one, so
(x-3)^2 + (y+1)^2 = 1
is its equation.