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How far is the point (x, y) from the origin?

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Joined: 02 Sep 2009
Posts: 55638
How far is the point (x, y) from the origin?  [#permalink]

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New post 13 Sep 2018, 04:57
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Difficulty:

  35% (medium)

Question Stats:

67% (01:03) correct 33% (01:29) wrong based on 50 sessions

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Joined: 19 Apr 2017
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Concentration: General Management, Sustainability
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Re: How far is the point (x, y) from the origin?  [#permalink]

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New post 15 Sep 2018, 02:54
How far is the point (x, y) from the origin?

Distance from the origin Formula \(d^2= x^2 + y^2\)

(1) \(x^2 + 4 = 5 – y^2\)

\(x^2 + y^2 = 5 –4=1\)

\(x^2 + y^2 =1\)

\(d^2 =1\) -> \(d=1\) A Sufficient

(2) \(x^2 ≠ y^2\)

For calculating distance, magnitude or the exact value between two points is always necessary. Not sufficient
GMAT Club Bot
Re: How far is the point (x, y) from the origin?   [#permalink] 15 Sep 2018, 02:54
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How far is the point (x, y) from the origin?

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