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

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Manager
Joined: 03 Oct 2009
Posts: 60

Kudos [?]: 148 [0], given: 8

Do lines y = ax^2 + b and y =cx^2 + d cross? [#permalink]

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18 Feb 2012, 10:32
00:00

Difficulty:

(N/A)

Question Stats:

38% (01:16) correct 63% (00:33) wrong based on 8 sessions

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

(1) a = -c
(2) b>d
[Reveal] Spoiler: OA

Kudos [?]: 148 [0], given: 8

Math Expert
Joined: 02 Sep 2009
Posts: 41886

Kudos [?]: 128773 [0], given: 12182

Re: Do these lines intersect [#permalink]

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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

Discussed here: m24-12-formatting-error-73363.html In case of any question please continue discussion there.
_________________

Kudos [?]: 128773 [0], given: 12182

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