Question

Q.23. Find the coordinates of a point A, where AB is the diameter of circle whose centre is (2, - 3)
and B is (1,4).
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Answer 1

Answer:

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Answer 2

Answer:

Given:-

A circle with centre (2,−3) and AB is the diameter of circle with B(1,4).

To find:- Coordinate of point A.

Let (x,y) be the coordinate of A.

Since AB is the diameter of the circle, the centre will be the mid-point of AB.

now, as centre is the mid-point of AB.

x-coordinate of centre = 2/x+1

y-coordinate of centre = 2/y+4

But given that centre of circle is (2,−3).

Therefore,

2/x+1 =2⇒x=3

2/y+4=−3⇒y=−10

Thus the coordinate of A is (3,−10).

Hence the correct answer is (3,−10).