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# Do lines y = A*(x^2) + b and y = C*(x^2) + d cross? 1. a =

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CEO
Joined: 21 Jan 2007
Posts: 2736

Kudos [?]: 1023 [0], given: 4

Location: New York City
Do lines y = A*(x^2) + b and y = C*(x^2) + d cross? 1. a = [#permalink]

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01 Nov 2007, 07:13
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Do lines y = A*(x^2) + b and y = C*(x^2) + d cross?

1. a = -c
2. b > d

Kudos [?]: 1023 [0], given: 4

SVP
Joined: 01 May 2006
Posts: 1794

Kudos [?]: 165 [0], given: 0

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01 Nov 2007, 07:30

Kudos [?]: 165 [0], given: 0

CEO
Joined: 29 Mar 2007
Posts: 2554

Kudos [?]: 500 [0], given: 0

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01 Nov 2007, 17:03
Jeez fig, overkill lol . very nice.

Easy to get down to C or E. no follow figs thread, very good explanation.

Kudos [?]: 500 [0], given: 0

01 Nov 2007, 17:03
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