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Do lines y = ax^2 + b and y =cx^2 + d cross?

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Do lines y = ax^2 + b and y =cx^2 + d cross? [#permalink] New post 18 Feb 2012, 10:32
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Do lines y = ax^2 + b and y =cx^2 + d cross?

(1) a = -c
(2) b>d
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Re: Do these lines intersect [#permalink] New post 18 Feb 2012, 10:35
Apex231 wrote:
Do lines y = ax^2 + b and y =cx^2 + d cross?

(1) a = -c
(2) b>d


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Re: Do these lines intersect   [#permalink] 18 Feb 2012, 10:35
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