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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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Joined: 08 Aug 2005
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Kudos [?]: 19 [0], given: 0

Y=a(x-b)^2+P Does Y intersect X axis? 1) a<0 2) P>0 [#permalink]  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
VP
Joined: 21 Sep 2003
Posts: 1065
Location: USA
Followers: 3

Kudos [?]: 39 [0], given: 0

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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