Question 601804
what is the equation of a circle having radius of 5 and tangent to both axes?
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There are 4 possible circles, one in each quadrant.
The radius is 5.
The center is (5,5), (-5,5), (-5,-5) & (5,-5)
The eqn is
{{{(x - h)^2 + (y - k)^2 = 5^2}}}
where (h,k) is the center.