Question 458242
2 points have the same y, (0,1) and (8,1).
The 3rd point's x is 1/4 of the other 2, so the 1st 2 points are a diameter.
That makes the center (4,1) and the radius 4.
--> {{{(x-4)^2 + (y-1)^2 = 4^2}}}
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