Question 781502: Write the equation of the circle in which the endpoints of its diameter are A(0,0) and B(0,6).
I honestly don't know how to get this answer. The answer in the back of the book gives x^2+(y-3)^2=9. The book doesn't nor the online videos that come with the book have any examples of this type of problem.
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! Write the equation of the circle in which the endpoints of its diameter are A(0,0) and B(0,6)
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Standard form of equation for a circle:  , (h,k)=(x,y) coordinates of center, r=radius
coordinates of center=coordinates of mid point of given end-points A and B
Use midpoint formula:
((0+0)/2),(6+0)/2=(0,3)
radius=distance between center and either one of given end-points, say, A
Use distance formula:
r=√(0-0)^2+(0-3)^2)=√9=3
Equation of given circle:
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