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In the coordinate plane above, point C is not displayed. If the length

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In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 18 Sep 2018, 20:26
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Question Stats:

58% (02:50) correct 42% (02:24) wrong based on 136 sessions

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In the coordinate plane above, point C is not displayed. If the length of line seg­ment BC is twice the length of line segment AB, which of the following could not be the coordinates of point C?

(A) (-5,-2)

(B) (9, 12)

(C) (10, 11)

(D) (11, 10)

(E) (13, 4)

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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 18 Sep 2018, 20:38
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A

Length of AB is 5 by pythagoras theorem. so length of BC must be 10.
Except A, all point are at a distance of 10 from point B.
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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 18 Sep 2018, 21:00
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ankitpandey wrote:
A

Length of AB is 5 by pythagoras theorem. so length of BC must be 10.
Except A, all point are at a distance of 10 from point B.

The ans is actually c and not a

A gives you a distance of 10 when you use the distance formula

Posted from my mobile device
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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 08 Nov 2018, 22:55
Can someone post the solution ?
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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 09 Nov 2018, 00:28
Could anyone pls share an explanation on this questionBunuel
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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 21 Nov 2018, 06:51
Draw a perpendicular towards x axis X'. BX' = 4 units ; AX' = 3 units. AB = 5 units.
Now check the distance of B from C using the points in the options.

a) 10 units
b) 10 units
c) sqrt 98
d) 10 units
e) 10 units
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In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 21 Nov 2018, 20:01
Please somebody could put the answer?, I'm trying to figure out how can I solve it.
I got it we have to draw imaginary triangles with coordinates of C.

Thank you
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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 21 Nov 2018, 20:16
jorgetomas9 wrote:
Please somebody could put the answer?, I'm trying to figure out how can I solve it.
I got it we have to draw imaginary triangles with coordinates of C.

Thank you


Use the options to solve it. Without it , it would take way to long.

You'll have to use assume C(x,y) and find the values for x and y

\((3-x)^2 + (4-y)^2 = 10^2\)
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Re: In the coordinate plane above, point C is not displayed. If the length  [#permalink]

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New post 21 Nov 2018, 20:17
pandeyashwin wrote:
jorgetomas9 wrote:
Please somebody could put the answer?, I'm trying to figure out how can I solve it.
I got it we have to draw imaginary triangles with coordinates of C.

Thank you


Use the options to solve it. Without it , it would take way to long.

You'll have to use assume C(x,y) and find the values for x and y

\((3-x)^2 + (4-y)^2 = 10^2\)

Yes, I did it, Thank you.
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Re: In the coordinate plane above, point C is not displayed. If the length &nbs [#permalink] 21 Nov 2018, 20:17
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In the coordinate plane above, point C is not displayed. If the length

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