Question

Describe fully the single transformation that maps triangle $S$ onto triangle $Q$.

Answer 1

Here the triangle $A$ is reflection to the triangle $B$.
Co-ordinates of $A:(-1,-3),(-1,-5),(-3,4)$
Co-ordinates of $B:(1,-1),(3,-1),(1,4)$
So, reflection: $(x,y)$ $\mapsto$ $(x+4,y=y)$