Enlarge the following shape by a scale of 3 from the graph origin.
Resize the following shape by a `1/3` from the centre co-ordinates (1,1).
Resize the following rectangle by a factor of `-2` with the centre at the origin (of the graph).
Enlarge the following triangle by a scale of 3 from the graph origin (0).
Describe fully the transformation which maps triangle A onto Triangle B.
The first stage is to find the origin which you can achieve by joining the respective corners with a line and extending them.
The extended lines all cross at point O which must therefore be the CENTRE point.
We must now work out the scale.
Take any point and on one side alone work out the change in scale.
`3` becomes `9`
So the answer is: The single transformation which maps triangle A onto triangle B is an enlargement with centre of coordinate (1,2) and scale of `+3`.