Please solve this I have no idea what to do thanks :)

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

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Which graph represents the linear function below? y-3=1/2(x+2)