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In the rectangular coordinate system, points (4, 0) and ( 4,

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Manager
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In the rectangular coordinate system, points (4, 0) and ( 4, [#permalink] New post 06 Nov 2008, 09:39
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

In the rectangular coordinate system, points (4, 0) and (– 4, 0) both lie on circle C. What is the maximum possible value of the radius of C ?

A. 2
B. 4
C. 8
D. 16
E. There is no finite maximum value.
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Re: coordinate system-30 [#permalink] New post 06 Nov 2008, 11:33
E

the line segment joining the 2 points can can be a chord of any length for the circle
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Re: coordinate system-30 [#permalink] New post 07 Nov 2008, 04:24
yep, E. The trick is "maximum radius" and not "minimum radius".
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Re: coordinate system-30 [#permalink] New post 07 Nov 2008, 04:27
E it is.

If the question read minimum radius, then the answer would have been 4.
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Re: coordinate system-30   [#permalink] 07 Nov 2008, 04:27
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In the rectangular coordinate system, points (4, 0) and ( 4,

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