In a translation, the position of the shape is moved up/down/sideways, but it does not change in size or direction.

Vectors are just a neat way of writing how many units the shape moves by.

Vector notation: [picture missing]

The top number is how many units are moved in the x direction.
The bottom number is how many units are moved in the y direction.

### There are different notations for vectors (but all mean the same thing):

bold or underlined letters
pairs of letters with an arrow on top of them
‘column vector form’, which uses numbers on top of each other inside a bracket, a bit like coordinates rotated on their side).

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