very small ball lies

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sanju09: GMAT Instructor; Posts: 3650; Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members; Location: India; Thanked: 267 times; GMAT Score:760

by sanju09 » Fri May 07, 2010 5:43 am

A very small ball lies at the point (3, 2) in the X – Y plane. The ball is now shifted by 5 units towards the negative Y-axis. If Y-axis were a mirror, then at what point will the image of this ball, lie?
(A) (3, -2)
(B) (–3, –3)
(C) (–3, –2)
(D)(–2, –2)
(E) (–2, –3)

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Source: Beat The GMAT — Problem Solving | Fri May 07, 2010 5:43 am

pradeepkaushal9518: Legendary Member; Posts: 1309; Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members; Thanked: 33 times

by pradeepkaushal9518 » Fri May 07, 2010 5:47 am

ans is B what is oa?

point 5 unit in negative y axis will take the point to (3,-3) and mirror image take it to ( -3 and -3)

liferocks: Legendary Member; Posts: 576; Joined: Sat Mar 13, 2010 8:31 pmFollowed by: 1 member; Thanked: 97 times

by liferocks » Fri May 07, 2010 6:01 am

Ans [spoiler]option B (-3,-3)[/spoiler]

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