Two marks example problems I — task. Mathematics State Board, Class 9.

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1. The point

$(3, -4)$ is the centre of circle. If

$AB$ is a diameter of the circle and

$B$ is

$(5, -6)$ , find the coordinates of

$A$ .

The coordinates of

$A$

$=$

$(i, i)$

2. If

$(x, 3)$ ,

$(6, y)$ ,

$(8, 2)$ and

$(9, 4)$ are the vertices of a parallelogram taken in order, then find the value of

$x$ and

$y$ .

$x$

$=$

$y$

$=$

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