Question 975975: Find the center-radius form for the circle having the endpoints (7,2) and (-9,8) of a diameter.
Thank you! Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Find the center-radius form for the circle having the endpoints (7,2) and (-9,8) of a diameter.
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The center is the midpoint.
Find the average of x & y separately for the midpoint.
x = (7-9)/2 = -1
y = (2+8)/2 = 5
--> center at (-1,5)
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r is the distance from the midpoint to either point.
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