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Bunuel
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In the coordinate plane above, point C is not displayed. If the length 18 Sep 2018, 21:26
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64% (01:59) correct 36% (02:11) wrong based on 246 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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C
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ankitpandey
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In the coordinate plane above, point C is not displayed. If the length 18 Sep 2018, 21:38
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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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In the coordinate plane above, point C is not displayed. If the length 18 Sep 2018, 22:00
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ankitpandey
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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The ans is actually c and not a

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

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In the coordinate plane above, point C is not displayed. If the length 21 Nov 2018, 07:51
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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 21 Nov 2018, 21:01
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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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In the coordinate plane above, point C is not displayed. If the length 21 Nov 2018, 21:16
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jorgetomas9
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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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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In the coordinate plane above, point C is not displayed. If the length 21 Nov 2018, 21:17
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jorgetomas9
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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Yes, I did it, Thank you.
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In the coordinate plane above, point C is not displayed. If the length 28 May 2023, 05:17
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Bunuel : Can you pls help understand why it is C and not D?
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In the coordinate plane above, point C is not displayed. If the length 28 May 2023, 11:22
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nivivacious
Bunuel : Can you pls help understand why it is C and not D?
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The formula to calculate the distance between two points \((x_1,y_1)\) and \((x_2,y_2)\) is \(d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\).

The distance between (10, 11) and (3, 4) is \(7\sqrt{2}\), while the distance between (11, 10) and (3, 4) is 10.
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In the coordinate plane above, point C is not displayed. If the length 30 Oct 2025, 21:16
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