Question

The point P with coordinates (-13,9) is reflected in the line y = -x. Without an accurate drawing as a sketch, write down the coordinates of the image of P. ​

Answer 1

Transformation involves changing the coordinates of a point

The coordinates of the image of P is (9,13)

How to determine the coordinates of the image of P

The coordinate of P is given as:

P = (-13,9)

The rule of reflecting the point over the line y = -x is represented as:

$(x,y) \to (y,-x)$

So, we have:

$(-13,9) \to (9,13)$

This means that:

$P' = (9,13)$

Hence, the coordinates of the image of P is (9,13)

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