Help me plz i’ll give extra points

Pls , the question is in the picture!

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1