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# In the xy-coordinate system, the distance between the point

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In the xy-coordinate system, the distance between the point [#permalink]  30 Nov 2018, 17:51
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In the xy-coordinate system, the distance between the point (0, 0) and point P is $$\sqrt{40}$$. Which of the following could be the coordinates of point P?

A. (4, 7)

B. (4, 10)

C. (5, 6)

D. (6, 2)

E. (20, 20)
[Reveal] Spoiler: OA

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Re: In the xy-coordinate system, the distance between the point [#permalink]  06 Dec 2018, 04:47
Try options using distance formula between two coordinates. \sqrt{(x2-x1)^2 + (y2-y1)^2}
A. (0,0) & (4,7) The distance is \sqrt{65}
B. (0,0) & (4,10) The distance is \sqrt{116}
C. (0,0) & (5,6) The distance is \sqrt{61}
D. (0,0) & (6,2) The distance is \sqrt{40}
So it's D
Re: In the xy-coordinate system, the distance between the point   [#permalink] 06 Dec 2018, 04:47
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