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If , on a coordinate plane, point A has the coordinates

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If , on a coordinate plane, point A has the coordinates [#permalink] New post 25 Dec 2005, 16:33
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If , on a coordinate plane, point A has the coordinates (-3,4), how far is point A from point E?

1) Point E is on the y-axis four units from the origin

2) If point A were twice as far from point E, it would be the same distance from point E as point C is at coordinates (0,-2)
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Re: DS coordinate plane Kaplan [#permalink] New post 25 Dec 2005, 23:45
joemama142000 wrote:
If, on a coordinate plane, point A has the coordinates (-3, 4), how far is point A from point E?

1) Point E is on the y-axis four units from the origin

2) If point A were twice as far from point E, it would be the same distance from point E as point C is at coordinates (0,-2)

from i, distance between A and E is 4.
from ii, what are the new coordinates of A, we donot know. insuff...

A.
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Re: DS coordinate plane Kaplan [#permalink] New post 25 Dec 2005, 23:55
HIMALAYA wrote:
joemama142000 wrote:
If, on a coordinate plane, point A has the coordinates (-3, 4), how far is point A from point E?

1) Point E is on the y-axis four units from the origin

2) If point A were twice as far from point E, it would be the same distance from point E as point C is at coordinates (0,-2)

from i, distance between A and E is 4.
from ii, what are the new coordinates of A, we donot know. insuff...

A.


But when we say 4 units from the origin, it means E can either be (0,4) or (0,-4), then in which case the distance could be different.
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Re: DS coordinate plane Kaplan [#permalink] New post 25 Dec 2005, 23:57
krisrini wrote:
HIMALAYA wrote:
joemama142000 wrote:
If, on a coordinate plane, point A has the coordinates (-3, 4), how far is point A from point E?

1) Point E is on the y-axis four units from the origin

2) If point A were twice as far from point E, it would be the same distance from point E as point C is at coordinates (0,-2)

from i, distance between A and E is 4.
from ii, what are the new coordinates of A, we donot know. insuff...

A.


But when we say 4 units from the origin, it means E can either be (0,4) or (0,-4), then in which case the distance could be different.


thats true. :twisted:

E..
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 [#permalink] New post 26 Dec 2005, 03:02
I think it has to be C

AE=3 or =sqrt 73

CE= 6 or 2

If A would be twice as far from E, it would have the same ength as CE, the only combination that works is CE=6 and AE=3
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  [#permalink] 26 Dec 2005, 03:02
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If , on a coordinate plane, point A has the coordinates

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