G2: Background: Translation
What must you include in translations?
- vectors (how many up and down)
What are vectors?
- two numbers in big brackets on top of eachother
- top number - distance across
- bottom number - distance down
What if the number is left then down?
they are minus numbers
G2: Background: Rotation
What do you need to include:
- centre of rotation
How can you find the centre of rotation
1.) join two corosponding points
2.) find the line perpendicular to it
3.) do the same for another two points