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j0nath0n3
Aug25-08, 06:20 PM
Endpoints of a diameter : (0,0), (6,8)
?
It says write the standard form of the equation of the specified circle.
Anyone know how to solve this?

Doc Al
Aug25-08, 06:28 PM
Hint: Start by finding the coordinates of the center of the circle. If you don't know the standard form for the equation of a circle, you'll have to look it up.

j0nath0n3
Aug25-08, 06:32 PM
Hint: Start by finding the coordinates of the center of the circle. If you don't know the standard form for the equation of a circle, you'll have to look it up.

If you mean (x-h)^2+(y-k)^2=r^2
i know it i just don't understand how i would get
(x-3)^2 + (y-4)^2=25 thats what the back of my book tells me i just don't see how they get to it..

Doc Al
Aug25-08, 06:39 PM
That's the right general equation; Look up what h, k, and r stand for.

j0nath0n3
Aug25-08, 07:20 PM
That's the right general equation; Look up what h, k, and r stand for.

H,K is X,Y
R is Radius

Doc Al
Aug25-08, 07:25 PM
H,K is X,Y
X, Y of what?