help me~

Question

help me~

anonymous · Answer

@ali2x2 here, try this one

anonymous · Answer

I only need number 8, I don't know what type of it

mathmate · Answer

Hints:
There is a rotation and scaling involved.  Order of transformation is not important (in this case).

anonymous · Answer

@mathmate : I think it was guide-reflection

mathmate · Answer

A glide reflection will change the image to the reflected image, which is not the case here.  Also, a glide reflection will NOT change the size of the image, here the image and preimage have different sizes!
It could be done in one step if  matrix is used.

anonymous · Answer

er.... it rotation?

anonymous · Answer

@mathmate

mathmate · Answer

The question clearly states that you need to describe the composition of transformations to go from FGH to QRS.
As I said,"There is a rotation and scaling involved.  Order of transformation is not important ",
so the composition is $R\circ S$ or $S\circ R$ and I will leave it to you to fill in the details of the rotation (CCW 90$^\circ$) and scale (1/2).