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# Y=a(x-b)^2+P Does Y intersect X axis? 1) a<0 2) P>0

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Senior Manager
Joined: 08 Aug 2005
Posts: 251

Kudos [?]: 67 [0], given: 0

Y=a(x-b)^2+P Does Y intersect X axis? 1) a<0 2) P>0 [#permalink]

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21 Apr 2006, 02:52
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Y=a(x-b)^2+P Does Y intersect X axis?

1) a<0
2) P>0

Kudos [?]: 67 [0], given: 0

VP
Joined: 21 Sep 2003
Posts: 1057

Kudos [?]: 82 [0], given: 0

Location: USA

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21 Apr 2006, 12:27
It should be C.

a<0, indicates parabola opens downwards.
p>0, indicates that the vertex of parabola is above the x-axis
Hence it intersects the x-axis.
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Kudos [?]: 82 [0], given: 0

21 Apr 2006, 12:27
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