Problem 85 of 7
Write the circle equation with diameter endpoints (2,7) and (8,1).
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find midpoint and radius from distance.
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Center is the midpoint of diameter endpoints and radius is half the endpoint distance.
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Solution
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1. Find the midpoint of the endpoints.
2. Find the distance from center to either endpoint.
3. Write standard circle form with radius squared.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using the diameter length as the radius.