Proving that R^n is affine space

[Kaukoje]

So i have no idea how to prove that R^n is affine space. Could someone help me to get started with this?

 

[Dale10101]

Well ...

So i have no idea how to prove that R^n is affine space. Could someone help me to get started with this?

Me neither.

What is an Affine space? What is it's relationship to a Euclidean space? Please make an attempt to explain so that you can get some help and thereby enable me to learn something.