The reflection of A (2, 3) in the line y = x is A' (3, 2). Write down the co-ordinates of the image of each of the points reflected in the line y = x
(i) (4, 1)
(ii) (- 2, - 3). $[2 M a r k s]$

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Solution

The reflection of A (2, 3) in the line y = x is A'(3, 2).
In this reflection the x and y co-ordinates are interchanged. $[1 M a r k]$

Therefore the reflection of given points in the line y = x will be
(i) (1, 4)
(ii) (- 3, - 2) $[1 M a r k]$

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[3 M a r k s]

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The reflection of A (2, 3) in the line y = x is A' (3, 2). Write down the co-ordinates of the image of each of the points reflected in the line y = x (i) (4, 1) (ii) (- 2, - 3). [2 Marks]

The reflection of A (2, 3) in the line y = x is A'(3, 2). In this reflection the x and y co-ordinates are interchanged. [1 Mark] Therefore the reflection of given points in the line y = x will be (i) (1, 4) (ii) (- 3, - 2) [1 Mark]

The reflection of A (2, 3) in the line y = x is A' (3, 2). Write down the co-ordinates of the image of each of the points reflected in the line y = x
(i) (4, 1)
(ii) (- 2, - 3). $[2 M a r k s]$

The reflection of A (2, 3) in the line y = x is A'(3, 2).
In this reflection the x and y co-ordinates are interchanged. $[1 M a r k]$

Therefore the reflection of given points in the line y = x will be
(i) (1, 4)
(ii) (- 3, - 2) $[1 M a r k]$