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Question

The coordinates of two points A and B are (−3,5) and (4,−9). Then the coordinates of the point P on AB such that AP:PB = 1:6 are


A

(2, -3)

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B

(-2, 3)

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C

(2, 3)

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D

(-2, -3)

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Solution

The correct option is B

(-2, 3)


We calculate the coordinates of a point dividing the line joining two points A(3,5) and B(4,9) in the ratio 1:6.

Let the coordinates of this point be (x,y)

Then the part of the line from (3,5) to (x,y) is 17(which we call as pw) of the whole line.

Then,

x=x1+pw(x2x1)=3 + 17 (4(3))=2

y=y1+pw(y2y1)=5 + 17 (95)=3

The point is (2,3)


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