BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

DS Plz. help

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 172
Joined: Wed Oct 31, 2007 11:21 am
Thanked: 1 times

DS Plz. help

by gmattester » Thu Aug 28, 2008 12:29 pm
In the xy –plane, is point (2, – 3) on line ℓ ?
(1) Point (– 2, 3) is on line ℓ.
(2) ℓ is not perpendicular to the x – axis.
Top
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 135
Joined: Mon Jun 23, 2008 3:56 am
Thanked: 7 times

by sethids » Thu Aug 28, 2008 1:24 pm
Stmt1: (-2,3) is on line l.
There is an equal possiblity of (2,-3) being on the line or off the line. Insufficient. Left wth B, C and E.

Stmt2: Line l is not perpendicular to x axis. i.e. it intersects the x axis. But at what point we dont know. Again nothing can be said about the point's existence on the line. left with C and E

Combining both, no conclusive evidence of (2,-3) being on or off the line.
Hence E.
Top
Post new topic Post Reply
• Page 1 of 1