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(i) The point P

   

on reflection in the line y =

   

is mapped onto P’ Find the co-ordinates of P’. (ii) Find the image of the point P

   

in the line y = -2.

(i) The steps for finding the co-ordinates are:

(a) Draw axis XOX’ and YOY’ and take

   

cm =

   

unit.

(b) Plot point P

   

on it.

(c) Draw a line y =

   

, which is parallel to x-axis.

(d) From P, draw a perpendicular on y =

   

meeting it at Q.

(e) Produce PQ to P’ such that QP’ = PQ.

Therefore, P’ is the reflection of P whose co-ordinates are

   

.

(ii) The steps for finding the co-ordinates are:

(a) Draw axis XOX’ and YOY’ and take

   

cm =

   

unit.

(b) Plot point P

   

on it.

(c) Draw a line y =

   

which is parallel to the x-axis.

(d) From P, draw a perpendicular on y =

   

which meets it at Q.

(e) Produce PQ to P’ such that QP’ = PQ.

Therefore, P’ is the image of P, whose co-ordinates are

   

.