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joemama142000
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krisrini
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krisrini
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joemama142000
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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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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