co-ordinate geometry .

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Md.Nazrul Islam: Senior | Next Rank: 100 Posts; Posts: 32; Joined: Sat Jul 16, 2011 11:31 am

by Md.Nazrul Islam » Sun Apr 01, 2012 6:29 pm

Is line 1 Parallel to the y-axis ?

1) the equation of line 1 is x=4

2) the points (4,2)and (4,-5)are on the line 1.

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Source: Beat The GMAT — Data Sufficiency | Sun Apr 01, 2012 6:29 pm

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by Bill@VeritasPrep » Sun Apr 01, 2012 7:38 pm

See my solution here: https://www.beatthegmat.com/data-suffien ... tml#461767

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Anurag@Gurome: GMAT Instructor; Posts: 3835; Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members; Location: Milpitas, CA; Thanked: 1854 times; GMAT Score:770

by Anurag@Gurome » Sun Apr 01, 2012 8:21 pm

Md.Nazrul Islam wrote:Is line 1 Parallel to the y-axis ?

1) the equation of line 1 is x=4

2) the points (4,2)and (4,-5)are on the line 1.

(1) The equation of line 1 is x = 4.

The figure above clearly shows that line 1 is parallel to y-axis; SUFFICIENT.

(2) The points (4, 2)and (4, -5)are on the line 1.

The figure above clearly shows that line 1 is parallel to y-axis; SUFFICIENT.

The correct answer is D.

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