1. Enlargement
Enlargement
Centre (0,0)
Scale factor 2

2. BD = 3 CE = 9 = 3 AB = 2 AC = 6 Scale Factor = AC = AB 6 2 = 3
Scale Factor = CE = BD 9 3
= 3 D A C B

3. Divide the distance from the centre of enlargement to any point on the image by the distance to the same point on the object
TO FIND THE SCALE FACTOR OR
Either divide any side of the image by the equivalent side in the object

4. To find the centre of enlargement
Join up the same point on both the object and the image
Centre of enlargement
Repeat with 2 more equivalent points
Where they cross is the centre of enlargement